Columbia Falls, Montana, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Columbia Falls, Montana, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
9th Aug 2026
180AQILowest AQI recorded on
30th Aug 2023
16AQISame Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 50 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
Columbia Falls, Montana, United States
AQI
Day
Night
.
6 AM14th Aug 2026
9 PM
5 AM15th Aug 2026
Day time
Avg. Highest Time
6AM14th Aug
52AQI
Avg. Lowest Time
5PM14th Aug
46AQI
Night time
Avg. Highest Time
11PM14th Aug
62AQI
Avg. Lowest Time
9PM14th Aug
50AQI
In the last 24 hours,
Columbia Falls's AQI reached its highest point of 62 at 11 PM during the Night, while the lowest point, 46, was recorded at 5 PM during the Day between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Columbia Falls, Montana, United States
JulAug
17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th
Day
Night
17th Jul 2026426 AMAQI
17th Jul 2026467 AMAQI
17th Jul 2026518 AMAQI
17th Jul 2026599 AMAQI
17th Jul 20265310 AMAQI
17th Jul 20263611 AMAQI
17th Jul 20264012 PMAQI
17th Jul 2026421 PMAQI
17th Jul 2026402 PMAQI
17th Jul 2026503 PMAQI
17th Jul 2026434 PMAQI
17th Jul 2026575 PMAQI
17th Jul 2026536 PMAQI
17th Jul 2026427 PMAQI
17th Jul 2026518 PMAQI
17th Jul 2026429 PMAQI
17th Jul 20265510 PMAQI
17th Jul 20265811 PMAQI
18th Jul 20265312 AMAQI
18th Jul 2026431 AMAQI
18th Jul 2026462 AMAQI
18th Jul 2026553 AMAQI
18th Jul 2026394 AMAQI
18th Jul 2026625 AMAQI
28°C20/36°C
18th Jul 2026656 AMAQI
18th Jul 2026647 AMAQI
18th Jul 2026648 AMAQI
18th Jul 2026659 AMAQI
18th Jul 20266210 AMAQI
18th Jul 20266311 AMAQI
18th Jul 20266212 PMAQI
18th Jul 2026661 PMAQI
18th Jul 2026652 PMAQI
18th Jul 2026623 PMAQI
18th Jul 2026774 PMAQI
18th Jul 2026425 PMAQI
18th Jul 2026426 PMAQI
18th Jul 2026527 PMAQI
18th Jul 2026588 PMAQI
18th Jul 2026539 PMAQI
18th Jul 20265010 PMAQI
18th Jul 20264411 PMAQI
19th Jul 20264412 AMAQI
19th Jul 2026551 AMAQI
19th Jul 2026642 AMAQI
19th Jul 2026763 AMAQI
19th Jul 2026874 AMAQI
19th Jul 2026865 AMAQI
26°C17/35°C
19th Jul 2026806 AMAQI
19th Jul 2026727 AMAQI
19th Jul 2026728 AMAQI
19th Jul 2026739 AMAQI
19th Jul 20267010 AMAQI
19th Jul 20266411 AMAQI
19th Jul 20266212 PMAQI
19th Jul 2026521 PMAQI
19th Jul 2026442 PMAQI
19th Jul 2026603 PMAQI
19th Jul 2026464 PMAQI
19th Jul 2026475 PMAQI
19th Jul 2026446 PMAQI
19th Jul 2026387 PMAQI
19th Jul 2026388 PMAQI
19th Jul 2026499 PMAQI
19th Jul 20265210 PMAQI
19th Jul 20265311 PMAQI
20th Jul 20264212 AMAQI
20th Jul 2026461 AMAQI
20th Jul 2026482 AMAQI
20th Jul 2026423 AMAQI
20th Jul 2026424 AMAQI
20th Jul 2026545 AMAQI
24°C14/32°C
20th Jul 2026546 AMAQI
20th Jul 2026527 AMAQI
20th Jul 2026418 AMAQI
20th Jul 2026399 AMAQI
20th Jul 20264410 AMAQI
20th Jul 20265311 AMAQI
20th Jul 20265312 PMAQI
20th Jul 2026541 PMAQI
20th Jul 2026512 PMAQI
20th Jul 2026523 PMAQI
20th Jul 2026604 PMAQI
20th Jul 2026575 PMAQI
20th Jul 2026586 PMAQI
20th Jul 2026567 PMAQI
20th Jul 2026628 PMAQI
20th Jul 20266410 PMAQI
20th Jul 20265711 PMAQI
21st Jul 20265912 AMAQI
21st Jul 2026561 AMAQI
21st Jul 2026532 AMAQI
21st Jul 2026553 AMAQI
21st Jul 2026534 AMAQI
21st Jul 2026505 AMAQI
23°C13/32°C
21st Jul 2026466 AMAQI
21st Jul 2026527 AMAQI
21st Jul 2026548 AMAQI
21st Jul 2026519 AMAQI
21st Jul 20265110 AMAQI
21st Jul 20265111 AMAQI
21st Jul 20265412 PMAQI
21st Jul 2026521 PMAQI
21st Jul 2026542 PMAQI
21st Jul 2026553 PMAQI
21st Jul 2026554 PMAQI
21st Jul 2026555 PMAQI
21st Jul 2026566 PMAQI
21st Jul 2026577 PMAQI
21st Jul 2026638 PMAQI
21st Jul 2026689 PMAQI
21st Jul 20266710 PMAQI
21st Jul 20266411 PMAQI
22nd Jul 20266312 AMAQI
22nd Jul 2026631 AMAQI
22nd Jul 2026602 AMAQI
22nd Jul 2026583 AMAQI
22nd Jul 2026554 AMAQI
22nd Jul 2026625 AMAQI
26°C21/33°C
22nd Jul 2026606 AMAQI
22nd Jul 2026577 AMAQI
22nd Jul 2026578 AMAQI
22nd Jul 2026619 AMAQI
22nd Jul 20266010 AMAQI
22nd Jul 20266011 AMAQI
22nd Jul 20266312 PMAQI
22nd Jul 2026631 PMAQI
22nd Jul 2026642 PMAQI
22nd Jul 2026723 PMAQI
22nd Jul 2026754 PMAQI
22nd Jul 2026645 PMAQI
22nd Jul 2026726 PMAQI
22nd Jul 2026737 PMAQI
22nd Jul 2026828 PMAQI
22nd Jul 2026969 PMAQI
22nd Jul 20269410 PMAQI
22nd Jul 20269911 PMAQI
23rd Jul 202610612 AMAQI
23rd Jul 20261031 AMAQI
23rd Jul 20261122 AMAQI
23rd Jul 20261193 AMAQI
23rd Jul 20261224 AMAQI
23rd Jul 20261325 AMAQI
26°C15/35°C
23rd Jul 20261246 AMAQI
23rd Jul 20261237 AMAQI
23rd Jul 20261178 AMAQI
23rd Jul 20261229 AMAQI
23rd Jul 202612710 AMAQI
23rd Jul 202611411 AMAQI
23rd Jul 202612312 PMAQI
23rd Jul 20261261 PMAQI
23rd Jul 20261262 PMAQI
23rd Jul 20261243 PMAQI
23rd Jul 2026764 PMAQI
23rd Jul 2026785 PMAQI
23rd Jul 20261266 PMAQI
23rd Jul 20261127 PMAQI
23rd Jul 2026968 PMAQI
23rd Jul 2026909 PMAQI
23rd Jul 20269010 PMAQI
23rd Jul 20268011 PMAQI
24th Jul 20268012 AMAQI
24th Jul 2026681 AMAQI
24th Jul 2026602 AMAQI
24th Jul 2026703 AMAQI
24th Jul 2026794 AMAQI
24th Jul 2026885 AMAQI
26°C15/36°C
24th Jul 2026866 AMAQI
24th Jul 2026887 AMAQI
24th Jul 2026898 AMAQI
24th Jul 2026889 AMAQI
24th Jul 20269010 AMAQI
24th Jul 20269211 AMAQI
24th Jul 20269512 PMAQI
24th Jul 2026781 PMAQI
24th Jul 2026772 PMAQI
24th Jul 2026773 PMAQI
24th Jul 2026714 PMAQI
24th Jul 2026545 PMAQI
24th Jul 2026556 PMAQI
24th Jul 2026607 PMAQI
24th Jul 2026528 PMAQI
24th Jul 2026449 PMAQI
24th Jul 20265810 PMAQI
24th Jul 20266311 PMAQI
25th Jul 20267212 AMAQI
25th Jul 2026711 AMAQI
25th Jul 2026582 AMAQI
25th Jul 2026483 AMAQI
25th Jul 2026514 AMAQI
25th Jul 2026525 AMAQI
26°C16/35°C
25th Jul 2026516 AMAQI
25th Jul 2026547 AMAQI
25th Jul 2026538 AMAQI
25th Jul 2026539 AMAQI
25th Jul 20265210 AMAQI
25th Jul 20265311 AMAQI
25th Jul 20265412 PMAQI
25th Jul 2026581 PMAQI
25th Jul 2026602 PMAQI
25th Jul 2026613 PMAQI
25th Jul 2026614 PMAQI
25th Jul 2026745 PMAQI
25th Jul 2026826 PMAQI
25th Jul 2026887 PMAQI
25th Jul 2026688 PMAQI
25th Jul 2026829 PMAQI
25th Jul 20267810 PMAQI
25th Jul 20268211 PMAQI
26th Jul 20269112 AMAQI
26th Jul 2026851 AMAQI
26th Jul 2026922 AMAQI
26th Jul 2026903 AMAQI
26th Jul 2026944 AMAQI
26th Jul 2026985 AMAQI
26°C13/36°C
26th Jul 2026986 AMAQI
26th Jul 2026947 AMAQI
26th Jul 2026988 AMAQI
26th Jul 2026959 AMAQI
26th Jul 20269510 AMAQI
26th Jul 20269811 AMAQI
26th Jul 202610412 PMAQI
26th Jul 20261341 PMAQI
26th Jul 20261442 PMAQI
26th Jul 20261503 PMAQI
26th Jul 20261384 PMAQI
26th Jul 20261485 PMAQI
26th Jul 20261246 PMAQI
26th Jul 20261187 PMAQI
26th Jul 20261258 PMAQI
26th Jul 20261289 PMAQI
26th Jul 20269610 PMAQI
26th Jul 20267811 PMAQI
27th Jul 20266712 AMAQI
27th Jul 2026631 AMAQI
27th Jul 2026572 AMAQI
27th Jul 2026543 AMAQI
27th Jul 2026544 AMAQI
27th Jul 2026565 AMAQI
24°C14/32°C
27th Jul 2026526 AMAQI
27th Jul 2026527 AMAQI
27th Jul 2026568 AMAQI
27th Jul 2026599 AMAQI
27th Jul 20266410 AMAQI
27th Jul 20266611 AMAQI
27th Jul 20266312 PMAQI
27th Jul 2026601 PMAQI
27th Jul 2026642 PMAQI
27th Jul 2026763 PMAQI
27th Jul 2026874 PMAQI
27th Jul 2026905 PMAQI
27th Jul 2026906 PMAQI
27th Jul 2026837 PMAQI
27th Jul 2026828 PMAQI
27th Jul 2026809 PMAQI
27th Jul 20267810 PMAQI
27th Jul 20267611 PMAQI
28th Jul 20268112 AMAQI
28th Jul 2026801 AMAQI
28th Jul 2026752 AMAQI
28th Jul 2026693 AMAQI
28th Jul 2026634 AMAQI
28th Jul 2026625 AMAQI
22°C10/31°C
28th Jul 2026566 AMAQI
28th Jul 2026597 AMAQI
28th Jul 2026628 AMAQI
28th Jul 2026689 AMAQI
28th Jul 20266610 AMAQI
28th Jul 20266911 AMAQI
28th Jul 20267312 PMAQI
28th Jul 2026711 PMAQI
28th Jul 2026722 PMAQI
28th Jul 2026673 PMAQI
28th Jul 2026764 PMAQI
28th Jul 2026755 PMAQI
28th Jul 2026776 PMAQI
28th Jul 2026827 PMAQI
28th Jul 2026768 PMAQI
28th Jul 2026789 PMAQI
28th Jul 20267110 PMAQI
28th Jul 20266211 PMAQI
29th Jul 20266212 AMAQI
29th Jul 2026641 AMAQI
29th Jul 2026622 AMAQI
29th Jul 2026653 AMAQI
29th Jul 2026654 AMAQI
29th Jul 2026595 AMAQI
23°C11/32°C
29th Jul 2026606 AMAQI
29th Jul 2026607 AMAQI
29th Jul 2026608 AMAQI
29th Jul 2026709 AMAQI
29th Jul 20267410 AMAQI
29th Jul 20267611 AMAQI
29th Jul 20267212 PMAQI
29th Jul 2026681 PMAQI
29th Jul 2026662 PMAQI
29th Jul 2026643 PMAQI
29th Jul 2026704 PMAQI
29th Jul 2026805 PMAQI
29th Jul 2026836 PMAQI
29th Jul 2026947 PMAQI
29th Jul 2026848 PMAQI
29th Jul 2026859 PMAQI
29th Jul 20268010 PMAQI
29th Jul 20268511 PMAQI
30th Jul 20269012 AMAQI
30th Jul 2026911 AMAQI
30th Jul 2026902 AMAQI
30th Jul 2026903 AMAQI
30th Jul 2026904 AMAQI
30th Jul 2026915 AMAQI
23°C13/32°C
30th Jul 2026866 AMAQI
30th Jul 2026827 AMAQI
30th Jul 2026868 AMAQI
30th Jul 2026849 AMAQI
30th Jul 20268410 AMAQI
30th Jul 20267711 AMAQI
30th Jul 20268312 PMAQI
30th Jul 2026801 PMAQI
30th Jul 2026822 PMAQI
30th Jul 2026813 PMAQI
30th Jul 2026824 PMAQI
30th Jul 2026805 PMAQI
30th Jul 2026746 PMAQI
30th Jul 2026807 PMAQI
30th Jul 2026788 PMAQI
30th Jul 2026809 PMAQI
30th Jul 20268010 PMAQI
30th Jul 20267111 PMAQI
31st Jul 20266912 AMAQI
31st Jul 2026761 AMAQI
31st Jul 2026722 AMAQI
31st Jul 2026743 AMAQI
31st Jul 2026724 AMAQI
31st Jul 2026665 AMAQI
24°C12/33°C
31st Jul 2026756 AMAQI
31st Jul 2026837 AMAQI
31st Jul 2026848 AMAQI
31st Jul 2026889 AMAQI
31st Jul 20268810 AMAQI
31st Jul 20268811 AMAQI
31st Jul 20268212 PMAQI
31st Jul 2026821 PMAQI
31st Jul 2026842 PMAQI
31st Jul 2026823 PMAQI
31st Jul 2026744 PMAQI
31st Jul 2026705 PMAQI
31st Jul 2026666 PMAQI
31st Jul 2026597 PMAQI
31st Jul 2026638 PMAQI
31st Jul 2026689 PMAQI
31st Jul 20266610 PMAQI
31st Jul 20266611 PMAQI
1st Aug 20266612 AMAQI
1st Aug 2026681 AMAQI
1st Aug 2026682 AMAQI
1st Aug 2026593 AMAQI
1st Aug 2026604 AMAQI
1st Aug 2026605 AMAQI
24°C13/34°C
1st Aug 2026646 AMAQI
1st Aug 2026657 AMAQI
1st Aug 2026668 AMAQI
1st Aug 2026729 AMAQI
1st Aug 20267410 AMAQI
1st Aug 20267611 AMAQI
1st Aug 20267612 PMAQI
1st Aug 2026781 PMAQI
1st Aug 2026742 PMAQI
1st Aug 2026723 PMAQI
1st Aug 2026744 PMAQI
1st Aug 2026745 PMAQI
1st Aug 2026936 PMAQI
1st Aug 2026867 PMAQI
1st Aug 2026728 PMAQI
1st Aug 2026969 PMAQI
1st Aug 202610010 PMAQI
1st Aug 20268011 PMAQI
2nd Aug 20266012 AMAQI
2nd Aug 2026421 AMAQI
2nd Aug 2026742 AMAQI
2nd Aug 2026423 AMAQI
2nd Aug 2026784 AMAQI
2nd Aug 2026845 AMAQI
25°C14/35°C
2nd Aug 2026426 AMAQI
2nd Aug 2026737 AMAQI
2nd Aug 2026648 AMAQI
2nd Aug 2026559 AMAQI
2nd Aug 20266010 AMAQI
2nd Aug 20267911 AMAQI
2nd Aug 202613012 PMAQI
2nd Aug 20261541 PMAQI
2nd Aug 20261662 PMAQI
2nd Aug 20261743 PMAQI
2nd Aug 20261844 PMAQI
2nd Aug 20261845 PMAQI
2nd Aug 20261856 PMAQI
2nd Aug 20261787 PMAQI
2nd Aug 20261778 PMAQI
2nd Aug 20261699 PMAQI
2nd Aug 202617010 PMAQI
2nd Aug 202617011 PMAQI
3rd Aug 202616612 AMAQI
3rd Aug 20261671 AMAQI
3rd Aug 20261662 AMAQI
3rd Aug 20261623 AMAQI
3rd Aug 20261624 AMAQI
3rd Aug 20261585 AMAQI
20°C15/26°C
3rd Aug 20261616 AMAQI
3rd Aug 20261597 AMAQI
3rd Aug 20261588 AMAQI
3rd Aug 20261329 AMAQI
3rd Aug 202610910 AMAQI
3rd Aug 20268411 AMAQI
3rd Aug 20266512 PMAQI
3rd Aug 2026631 PMAQI
3rd Aug 2026642 PMAQI
3rd Aug 2026843 PMAQI
3rd Aug 2026934 PMAQI
3rd Aug 2026945 PMAQI
3rd Aug 2026966 PMAQI
3rd Aug 20261067 PMAQI
3rd Aug 20261068 PMAQI
3rd Aug 20261039 PMAQI
3rd Aug 202611210 PMAQI
3rd Aug 202610611 PMAQI
4th Aug 20269812 AMAQI
4th Aug 2026951 AMAQI
4th Aug 2026962 AMAQI
4th Aug 2026923 AMAQI
4th Aug 2026804 AMAQI
4th Aug 2026775 AMAQI
17°C10/25°C
4th Aug 2026726 AMAQI
4th Aug 2026847 AMAQI
4th Aug 2026888 AMAQI
4th Aug 2026929 AMAQI
4th Aug 20269210 AMAQI
4th Aug 20269211 AMAQI
4th Aug 20269612 PMAQI
4th Aug 2026981 PMAQI
4th Aug 2026912 PMAQI
4th Aug 2026903 PMAQI
4th Aug 2026764 PMAQI
4th Aug 2026705 PMAQI
4th Aug 2026656 PMAQI
4th Aug 2026657 PMAQI
4th Aug 2026658 PMAQI
4th Aug 2026649 PMAQI
4th Aug 20266810 PMAQI
4th Aug 20267011 PMAQI
5th Aug 20267112 AMAQI
5th Aug 2026621 AMAQI
5th Aug 2026622 AMAQI
5th Aug 2026673 AMAQI
5th Aug 2026674 AMAQI
5th Aug 2026685 AMAQI
19°C8/27°C
5th Aug 2026666 AMAQI
5th Aug 2026687 AMAQI
5th Aug 2026668 AMAQI
5th Aug 2026709 AMAQI
5th Aug 20267410 AMAQI
5th Aug 20267011 AMAQI
5th Aug 20267012 PMAQI
5th Aug 2026761 PMAQI
5th Aug 2026762 PMAQI
5th Aug 2026663 PMAQI
5th Aug 2026674 PMAQI
5th Aug 2026715 PMAQI
5th Aug 2026696 PMAQI
5th Aug 2026677 PMAQI
5th Aug 2026638 PMAQI
5th Aug 2026599 PMAQI
5th Aug 20266010 PMAQI
5th Aug 20267211 PMAQI
6th Aug 20266912 AMAQI
6th Aug 2026701 AMAQI
6th Aug 2026752 AMAQI
6th Aug 2026653 AMAQI
6th Aug 2026724 AMAQI
6th Aug 2026795 AMAQI
21°C9/30°C
6th Aug 2026916 AMAQI
6th Aug 20261027 AMAQI
6th Aug 20261028 AMAQI
6th Aug 2026989 AMAQI
6th Aug 20269610 AMAQI
6th Aug 202610411 AMAQI
6th Aug 20269912 PMAQI
6th Aug 2026971 PMAQI
6th Aug 20261022 PMAQI
6th Aug 2026973 PMAQI
6th Aug 20261024 PMAQI
6th Aug 20261045 PMAQI
6th Aug 20261166 PMAQI
6th Aug 20261167 PMAQI
6th Aug 20261328 PMAQI
6th Aug 20261249 PMAQI
6th Aug 202612810 PMAQI
6th Aug 202613811 PMAQI
7th Aug 202613812 AMAQI
7th Aug 20261271 AMAQI
7th Aug 20261382 AMAQI
7th Aug 20261453 AMAQI
7th Aug 20261444 AMAQI
7th Aug 20261475 AMAQI
21°C12/30°C
7th Aug 20261406 AMAQI
7th Aug 20261467 AMAQI
7th Aug 20261518 AMAQI
7th Aug 20261549 AMAQI
7th Aug 202615210 AMAQI
7th Aug 202615611 AMAQI
7th Aug 202615612 PMAQI
7th Aug 20261521 PMAQI
7th Aug 20261562 PMAQI
7th Aug 20261543 PMAQI
7th Aug 20261564 PMAQI
7th Aug 20261565 PMAQI
7th Aug 20261556 PMAQI
7th Aug 20261507 PMAQI
7th Aug 20261458 PMAQI
7th Aug 20261509 PMAQI
7th Aug 202614110 PMAQI
7th Aug 202614711 PMAQI
8th Aug 202614412 AMAQI
8th Aug 20261351 AMAQI
8th Aug 20261492 AMAQI
8th Aug 20261473 AMAQI
8th Aug 20261424 AMAQI
8th Aug 20261385 AMAQI
22°C11/32°C
8th Aug 20261386 AMAQI
8th Aug 20261407 AMAQI
8th Aug 20261348 AMAQI
8th Aug 20261369 AMAQI
8th Aug 202614310 AMAQI
8th Aug 202613911 AMAQI
8th Aug 202612312 PMAQI
8th Aug 20261321 PMAQI
8th Aug 20261302 PMAQI
8th Aug 20261203 PMAQI
8th Aug 20261174 PMAQI
8th Aug 20261015 PMAQI
8th Aug 2026986 PMAQI
8th Aug 2026957 PMAQI
8th Aug 20261258 PMAQI
8th Aug 20261609 PMAQI
8th Aug 202616610 PMAQI
8th Aug 202617811 PMAQI
9th Aug 202617612 AMAQI
9th Aug 20261821 AMAQI
9th Aug 20261762 AMAQI
9th Aug 20261803 AMAQI
9th Aug 20261814 AMAQI
9th Aug 20261835 AMAQI
23°C13/33°C
9th Aug 20261846 AMAQI
9th Aug 20261837 AMAQI
9th Aug 20261828 AMAQI
9th Aug 20261819 AMAQI
9th Aug 202618110 AMAQI
9th Aug 202618011 AMAQI
9th Aug 202618412 PMAQI
9th Aug 20261851 PMAQI
9th Aug 20261822 PMAQI
9th Aug 20261733 PMAQI
9th Aug 20261724 PMAQI
9th Aug 20261745 PMAQI
9th Aug 20261756 PMAQI
9th Aug 20261787 PMAQI
9th Aug 20261768 PMAQI
9th Aug 20261789 PMAQI
9th Aug 202618110 PMAQI
9th Aug 202618011 PMAQI
10th Aug 202618212 AMAQI
10th Aug 20261761 AMAQI
10th Aug 20261732 AMAQI
10th Aug 20261723 AMAQI
10th Aug 20261784 AMAQI
10th Aug 20261755 AMAQI
21°C13/30°C
10th Aug 20261806 AMAQI
10th Aug 20261727 AMAQI
10th Aug 20261708 AMAQI
10th Aug 20261769 AMAQI
10th Aug 202617210 AMAQI
10th Aug 202616611 AMAQI
10th Aug 202616812 PMAQI
10th Aug 20261661 PMAQI
10th Aug 20261722 PMAQI
10th Aug 20261733 PMAQI
10th Aug 20261634 PMAQI
10th Aug 20261585 PMAQI
10th Aug 20261546 PMAQI
10th Aug 20261427 PMAQI
10th Aug 20261348 PMAQI
10th Aug 20261209 PMAQI
10th Aug 202611310 PMAQI
10th Aug 202611011 PMAQI
11th Aug 202612412 AMAQI
11th Aug 20261151 AMAQI
11th Aug 20261182 AMAQI
11th Aug 20261173 AMAQI
11th Aug 20261074 AMAQI
11th Aug 20261025 AMAQI
22°C13/31°C
11th Aug 20261006 AMAQI
11th Aug 20261027 AMAQI
11th Aug 2026968 AMAQI
11th Aug 2026939 AMAQI
11th Aug 20269410 AMAQI
11th Aug 20269411 AMAQI
11th Aug 20269812 PMAQI
11th Aug 20261001 PMAQI
11th Aug 2026922 PMAQI
11th Aug 2026883 PMAQI
11th Aug 2026844 PMAQI
11th Aug 2026865 PMAQI
11th Aug 2026766 PMAQI
11th Aug 2026707 PMAQI
11th Aug 2026688 PMAQI
11th Aug 2026669 PMAQI
11th Aug 20266810 PMAQI
11th Aug 20266711 PMAQI
12th Aug 20267012 AMAQI
12th Aug 2026721 AMAQI
12th Aug 2026712 AMAQI
12th Aug 2026763 AMAQI
12th Aug 2026744 AMAQI
12th Aug 2026825 AMAQI
22°C13/30°C
12th Aug 2026766 AMAQI
12th Aug 2026777 AMAQI
12th Aug 2026848 AMAQI
12th Aug 2026769 AMAQI
12th Aug 20267610 AMAQI
12th Aug 20267811 AMAQI
12th Aug 20267712 PMAQI
12th Aug 2026801 PMAQI
12th Aug 2026772 PMAQI
12th Aug 2026763 PMAQI
12th Aug 2026764 PMAQI
12th Aug 2026805 PMAQI
12th Aug 2026636 PMAQI
12th Aug 2026537 PMAQI
12th Aug 2026678 PMAQI
12th Aug 2026549 PMAQI
12th Aug 20264610 PMAQI
12th Aug 20265811 PMAQI
13th Aug 20265812 AMAQI
13th Aug 2026551 AMAQI
13th Aug 2026552 AMAQI
13th Aug 2026543 AMAQI
13th Aug 2026554 AMAQI
13th Aug 2026575 AMAQI
21°C15/27°C
13th Aug 2026496 AMAQI
13th Aug 2026537 AMAQI
13th Aug 2026588 AMAQI
13th Aug 2026589 AMAQI
13th Aug 20265210 AMAQI
13th Aug 20265311 AMAQI
13th Aug 20265612 PMAQI
13th Aug 2026541 PMAQI
13th Aug 2026522 PMAQI
13th Aug 2026503 PMAQI
13th Aug 2026524 PMAQI
13th Aug 2026535 PMAQI
13th Aug 2026646 PMAQI
13th Aug 2026607 PMAQI
13th Aug 2026598 PMAQI
13th Aug 2026559 PMAQI
13th Aug 20265210 PMAQI
13th Aug 20264411 PMAQI
14th Aug 20264412 AMAQI
14th Aug 2026441 AMAQI
14th Aug 2026502 AMAQI
14th Aug 2026513 AMAQI
14th Aug 2026524 AMAQI
14th Aug 2026535 AMAQI
19°C16/25°C
14th Aug 2026526 AMAQI
14th Aug 2026497 AMAQI
14th Aug 2026468 AMAQI
14th Aug 2026529 AMAQI
14th Aug 20264710 AMAQI
14th Aug 20265111 AMAQI
14th Aug 20264812 PMAQI
14th Aug 2026481 PMAQI
14th Aug 2026522 PMAQI
14th Aug 2026513 PMAQI
14th Aug 2026484 PMAQI
14th Aug 2026465 PMAQI
14th Aug 2026486 PMAQI
14th Aug 2026487 PMAQI
14th Aug 2026528 PMAQI
14th Aug 2026509 PMAQI
14th Aug 20265410 PMAQI
14th Aug 20266211 PMAQI
15th Aug 20265912 AMAQI
15th Aug 2026521 AMAQI
15th Aug 2026522 AMAQI
15th Aug 2026533 AMAQI
15th Aug 2026554 AMAQI
15th Aug 2026525 AMAQI
18°C15/25°C
15th Aug 2026506 AMAQI
6 AM15th Aug 2026527 AMAQI
15th Aug 2026468 AMAQI
15th Aug 2026489 AMAQI
15th Aug 20264810 AMAQI
15th Aug 20265111 AMAQI
15th Aug 20265112 PMAQI
15th Aug 2026441 PMAQI
1 PM15th Aug 2026512 PMAQI
15th Aug 2026543 PMAQI
15th Aug 2026504 PMAQI
15th Aug 2026445 PMAQI
15th Aug 2026446 PMAQI
15th Aug 2026447 PMAQI
15th Aug 2026488 PMAQI
15th Aug 2026509 PMAQI
9 PM15th Aug 20265210 PMAQI
15th Aug 20265111 PMAQI
1 AM
5 AM
18°C11/28°C
Day time
Avg. Highest Time
6 AM - 9 PM
86AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
6 AM - 9 PM
86AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 9 PM (Avg. 86), while the lowest AQI was between 6 AM to 9 PM (Avg. 86).
Night time
Avg. Highest Time
12 AM - 11 PM
85AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
1 AM - 11 PM
84AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 85), while the lowest AQI was between 1 AM to 11 PM (Avg. 84).
2026 Days Vs Air Quality
Columbia Falls, Montana, United States
2026
86%
192
10%
23
3%
7
0.8%
2
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Good
192 DaysModerate
23 DaysPoor
7 DaysUnhealthy
2 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2026, 86% of 227 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Columbia Falls, Montana, United States
AQI levels in 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
38AQI (US)
38AQI (US)
2nd January 2026
41AQI (US)
41AQI (US)
3rd January 2026
47AQI (US)
47AQI (US)
4th January 2026
25AQI (US)
25AQI (US)
5th January 2026
24AQI (US)
24AQI (US)
6th January 2026
20AQI (US)
20AQI (US)
7th January 2026
23AQI (US)
23AQI (US)
8th January 2026
18AQI (US)
18AQI (US)
9th January 2026
23AQI (US)
23AQI (US)
10th January 2026
28AQI (US)
28AQI (US)
11th January 2026
52AQI (US)
52AQI (US)
12th January 2026
30AQI (US)
30AQI (US)
13th January 2026
27AQI (US)
27AQI (US)
14th January 2026
33AQI (US)
33AQI (US)
15th January 2026
33AQI (US)
33AQI (US)
16th January 2026
25AQI (US)
25AQI (US)
17th January 2026
31AQI (US)
31AQI (US)
18th January 2026
31AQI (US)
31AQI (US)
19th January 2026
29AQI (US)
29AQI (US)
20th January 2026
26AQI (US)
26AQI (US)
21st January 2026
30AQI (US)
30AQI (US)
22nd January 2026
30AQI (US)
30AQI (US)
23rd January 2026
36AQI (US)
36AQI (US)
24th January 2026
34AQI (US)
34AQI (US)
25th January 2026
32AQI (US)
32AQI (US)
26th January 2026
35AQI (US)
35AQI (US)
27th January 2026
52AQI (US)
52AQI (US)
28th January 2026
30AQI (US)
30AQI (US)
29th January 2026
32AQI (US)
32AQI (US)
30th January 2026
32AQI (US)
32AQI (US)
31st January 2026
26AQI (US)
26AQI (US)
1st February 2026
36AQI (US)
36AQI (US)
2nd February 2026
42AQI (US)
42AQI (US)
3rd February 2026
36AQI (US)
36AQI (US)
4th February 2026
30AQI (US)
30AQI (US)
5th February 2026
41AQI (US)
41AQI (US)
6th February 2026
31AQI (US)
31AQI (US)
7th February 2026
30AQI (US)
30AQI (US)
8th February 2026
30AQI (US)
30AQI (US)
9th February 2026
24AQI (US)
24AQI (US)
10th February 2026
25AQI (US)
25AQI (US)
11th February 2026
25AQI (US)
25AQI (US)
12th February 2026
34AQI (US)
34AQI (US)
13th February 2026
36AQI (US)
36AQI (US)
14th February 2026
32AQI (US)
32AQI (US)
15th February 2026
18AQI (US)
18AQI (US)
16th February 2026
26AQI (US)
26AQI (US)
17th February 2026
42AQI (US)
42AQI (US)
18th February 2026
26AQI (US)
26AQI (US)
19th February 2026
30AQI (US)
30AQI (US)
20th February 2026
24AQI (US)
24AQI (US)
21st February 2026
36AQI (US)
36AQI (US)
22nd February 2026
29AQI (US)
29AQI (US)
23rd February 2026
26AQI (US)
26AQI (US)
24th February 2026
44AQI (US)
44AQI (US)
25th February 2026
26AQI (US)
26AQI (US)
26th February 2026
25AQI (US)
25AQI (US)
27th February 2026
32AQI (US)
32AQI (US)
28th February 2026
22AQI (US)
22AQI (US)
1st March 2026
27AQI (US)
27AQI (US)
2nd March 2026
36AQI (US)
36AQI (US)
3rd March 2026
26AQI (US)
26AQI (US)
4th March 2026
32AQI (US)
32AQI (US)
5th March 2026
30AQI (US)
30AQI (US)
6th March 2026
22AQI (US)
22AQI (US)
7th March 2026
28AQI (US)
28AQI (US)
8th March 2026
25AQI (US)
25AQI (US)
9th March 2026
26AQI (US)
26AQI (US)
10th March 2026
20AQI (US)
20AQI (US)
11th March 2026
28AQI (US)
28AQI (US)
12th March 2026
30AQI (US)
30AQI (US)
13th March 2026
36AQI (US)
36AQI (US)
14th March 2026
25AQI (US)
25AQI (US)
15th March 2026
23AQI (US)
23AQI (US)
16th March 2026
17AQI (US)
17AQI (US)
17th March 2026
23AQI (US)
23AQI (US)
18th March 2026
22AQI (US)
22AQI (US)
19th March 2026
25AQI (US)
25AQI (US)
20th March 2026
37AQI (US)
37AQI (US)
21st March 2026
32AQI (US)
32AQI (US)
22nd March 2026
25AQI (US)
25AQI (US)
23rd March 2026
30AQI (US)
30AQI (US)
24th March 2026
40AQI (US)
40AQI (US)
25th March 2026
37AQI (US)
37AQI (US)
26th March 2026
44AQI (US)
44AQI (US)
27th March 2026
24AQI (US)
24AQI (US)
28th March 2026
32AQI (US)
32AQI (US)
29th March 2026
55AQI (US)
55AQI (US)
30th March 2026
48AQI (US)
48AQI (US)
31st March 2026
36AQI (US)
36AQI (US)
1st April 2026
22AQI (US)
22AQI (US)
2nd April 2026
27AQI (US)
27AQI (US)
3rd April 2026
28AQI (US)
28AQI (US)
4th April 2026
15AQI (US)
15AQI (US)
5th April 2026
28AQI (US)
28AQI (US)
6th April 2026
25AQI (US)
25AQI (US)
7th April 2026
25AQI (US)
25AQI (US)
8th April 2026
23AQI (US)
23AQI (US)
9th April 2026
29AQI (US)
29AQI (US)
10th April 2026
22AQI (US)
22AQI (US)
11th April 2026
24AQI (US)
24AQI (US)
12th April 2026
50AQI (US)
50AQI (US)
13th April 2026
42AQI (US)
42AQI (US)
14th April 2026
27AQI (US)
27AQI (US)
15th April 2026
32AQI (US)
32AQI (US)
16th April 2026
31AQI (US)
31AQI (US)
17th April 2026
18th April 2026
24AQI (US)
24AQI (US)
19th April 2026
23AQI (US)
23AQI (US)
20th April 2026
21AQI (US)
21AQI (US)
21st April 2026
19AQI (US)
19AQI (US)
22nd April 2026
23rd April 2026
20AQI (US)
20AQI (US)
24th April 2026
22AQI (US)
22AQI (US)
25th April 2026
20AQI (US)
20AQI (US)
26th April 2026
24AQI (US)
24AQI (US)
27th April 2026
33AQI (US)
33AQI (US)
28th April 2026
27AQI (US)
27AQI (US)
29th April 2026
31AQI (US)
31AQI (US)
30th April 2026
26AQI (US)
26AQI (US)
1st May 2026
23AQI (US)
23AQI (US)
2nd May 2026
20AQI (US)
20AQI (US)
3rd May 2026
21AQI (US)
21AQI (US)
4th May 2026
24AQI (US)
24AQI (US)
5th May 2026
27AQI (US)
27AQI (US)
6th May 2026
22AQI (US)
22AQI (US)
7th May 2026
23AQI (US)
23AQI (US)
8th May 2026
22AQI (US)
22AQI (US)
9th May 2026
10th May 2026
21AQI (US)
21AQI (US)
11th May 2026
15AQI (US)
15AQI (US)
12th May 2026
22AQI (US)
22AQI (US)
13th May 2026
23AQI (US)
23AQI (US)
14th May 2026
20AQI (US)
20AQI (US)
15th May 2026
26AQI (US)
26AQI (US)
16th May 2026
40AQI (US)
40AQI (US)
17th May 2026
38AQI (US)
38AQI (US)
18th May 2026
31AQI (US)
31AQI (US)
19th May 2026
27AQI (US)
27AQI (US)
20th May 2026
26AQI (US)
26AQI (US)
21st May 2026
22AQI (US)
22AQI (US)
22nd May 2026
26AQI (US)
26AQI (US)
23rd May 2026
20AQI (US)
20AQI (US)
24th May 2026
21AQI (US)
21AQI (US)
25th May 2026
21AQI (US)
21AQI (US)
26th May 2026
18AQI (US)
18AQI (US)
27th May 2026
25AQI (US)
25AQI (US)
28th May 2026
42AQI (US)
42AQI (US)
29th May 2026
14AQI (US)
14AQI (US)
30th May 2026
27AQI (US)
27AQI (US)
31st May 2026
18AQI (US)
18AQI (US)
1st June 2026
23AQI (US)
23AQI (US)
2nd June 2026
25AQI (US)
25AQI (US)
3rd June 2026
34AQI (US)
34AQI (US)
4th June 2026
34AQI (US)
34AQI (US)
5th June 2026
21AQI (US)
21AQI (US)
6th June 2026
11AQI (US)
11AQI (US)
7th June 2026
16AQI (US)
16AQI (US)
8th June 2026
19AQI (US)
19AQI (US)
9th June 2026
19AQI (US)
19AQI (US)
10th June 2026
20AQI (US)
20AQI (US)
11th June 2026
19AQI (US)
19AQI (US)
12th June 2026
19AQI (US)
19AQI (US)
13th June 2026
17AQI (US)
17AQI (US)
14th June 2026
16AQI (US)
16AQI (US)
15th June 2026
18AQI (US)
18AQI (US)
16th June 2026
21AQI (US)
21AQI (US)
17th June 2026
16AQI (US)
16AQI (US)
18th June 2026
18AQI (US)
18AQI (US)
19th June 2026
16AQI (US)
16AQI (US)
20th June 2026
14AQI (US)
14AQI (US)
21st June 2026
16AQI (US)
16AQI (US)
22nd June 2026
15AQI (US)
15AQI (US)
23rd June 2026
20AQI (US)
20AQI (US)
24th June 2026
19AQI (US)
19AQI (US)
25th June 2026
17AQI (US)
17AQI (US)
26th June 2026
15AQI (US)
15AQI (US)
27th June 2026
17AQI (US)
17AQI (US)
28th June 2026
21AQI (US)
21AQI (US)
29th June 2026
52AQI (US)
52AQI (US)
30th June 2026
104AQI (US)
104AQI (US)
1st July 2026
40AQI (US)
40AQI (US)
2nd July 2026
18AQI (US)
18AQI (US)
3rd July 2026
13AQI (US)
13AQI (US)
4th July 2026
14AQI (US)
14AQI (US)
5th July 2026
23AQI (US)
23AQI (US)
6th July 2026
16AQI (US)
16AQI (US)
7th July 2026
18AQI (US)
18AQI (US)
8th July 2026
26AQI (US)
26AQI (US)
9th July 2026
36AQI (US)
36AQI (US)
10th July 2026
24AQI (US)
24AQI (US)
11th July 2026
15AQI (US)
15AQI (US)
12th July 2026
21AQI (US)
21AQI (US)
13th July 2026
28AQI (US)
28AQI (US)
14th July 2026
30AQI (US)
30AQI (US)
15th July 2026
37AQI (US)
37AQI (US)
16th July 2026
39AQI (US)
39AQI (US)
17th July 2026
48AQI (US)
48AQI (US)
18th July 2026
56AQI (US)
56AQI (US)
19th July 2026
60AQI (US)
60AQI (US)
20th July 2026
51AQI (US)
51AQI (US)
21st July 2026
55AQI (US)
55AQI (US)
22nd July 2026
68AQI (US)
68AQI (US)
23rd July 2026
111AQI (US)
111AQI (US)
24th July 2026
73AQI (US)
73AQI (US)
25th July 2026
63AQI (US)
63AQI (US)
26th July 2026
109AQI (US)
109AQI (US)
27th July 2026
68AQI (US)
68AQI (US)
28th July 2026
70AQI (US)
70AQI (US)
29th July 2026
71AQI (US)
71AQI (US)
30th July 2026
83AQI (US)
83AQI (US)
31st July 2026
75AQI (US)
75AQI (US)
1st August 2026
74AQI (US)
74AQI (US)
2nd August 2026
116AQI (US)
116AQI (US)
3rd August 2026
120AQI (US)
120AQI (US)
4th August 2026
82AQI (US)
82AQI (US)
5th August 2026
68AQI (US)
68AQI (US)
6th August 2026
99AQI (US)
99AQI (US)
7th August 2026
148AQI (US)
148AQI (US)
8th August 2026
134AQI (US)
134AQI (US)
9th August 2026
180AQI (US)
180AQI (US)
10th August 2026
161AQI (US)
161AQI (US)
11th August 2026
93AQI (US)
93AQI (US)
12th August 2026
72AQI (US)
72AQI (US)
13th August 2026
54AQI (US)
54AQI (US)
14th August 2026
50AQI (US)
50AQI (US)
15th August 2026
50AQI (US)
50AQI (US)
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
31AQI (US)
31AQI (US)
30AQI (US)
26AQI (US)
24AQI (US)
23AQI (US)
47AQI (US)
100AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
29
2
28
30
1
28
30
28
1
1
17
12
2
2
7
4
2
192
23
7
2
Highest AQI (US) recorded in
August100AQI (US)
Lowest AQI (US) recorded in
June23AQI (US)
202534AQI (US)
18
13
28
31
30
31
27
3
30
1
28
3
14
16
27
4
22
8
26
5
312
53
Highest AQI (US) recorded in
September53AQI (US)
Lowest AQI (US) recorded in
May21AQI (US)
202432AQI (US)
25
6
28
1
31
30
31
28
1
20
11
24
7
11
7
30
1
25
5
27
4
310
43
Highest AQI (US) recorded in
July45AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202336AQI (US)
22
9
21
7
31
30
24
4
2
1
26
4
30
1
13
14
4
30
28
2
1
19
10
19
12
293
63
7
1
Highest AQI (US) recorded in
August62AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202233AQI (US)
21
8
19
2
31
30
29
30
21
1
16
10
3
20
11
15
14
1
25
6
258
51
4
Highest AQI (US) recorded in
September59AQI (US)
Lowest AQI (US) recorded in
May17AQI (US)
202131AQI (US)
27
2
27
1
30
1
29
1
31
30
10
19
2
19
6
6
25
3
2
31
22
7
1
30
311
40
11
Highest AQI (US) recorded in
July64AQI (US)
Lowest AQI (US) recorded in
May18AQI (US)
202028AQI (US)
13
20
18
30
31
25
3
21
2
2
5
21
9
27
3
27
4
233
21
2
5
Highest AQI (US) recorded in
September56AQI (US)
Lowest AQI (US) recorded in
June12AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
36AQI (US)Least Polluted Year Recorded
2020(Avg.)
28AQI (US)Columbia Falls's annual 2026 AQI (US) (35) shows an average percentage change of 8.9% (worsened AQI (US)) compared to previous years: 2020 (28), 2021 (31), 2022 (33), 2023 (36), 2024 (32), 2025 (34).
