Libby, 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
Libby, Montana, United States
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
9th Aug 2026
162AQILowest AQI recorded on
17th Aug 2025
19AQISame Day Analysis (9th August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 162 of Unhealthy air quality on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Libby, Montana, United States
AQI
Day
Night
.
6 AM8th Aug 2026
9 PM
5 AM9th Aug 2026
Day time
Avg. Highest Time
8PM8th Aug
128AQI
Avg. Lowest Time
6PM8th Aug
100AQI
Night time
Avg. Highest Time
5AM9th Aug
160AQI
Avg. Lowest Time
12AM9th Aug
124AQI
In the last 24 hours,
Libby's AQI reached its highest point of 160 at 5 AM during the Night, while the lowest point, 100, was recorded at 6 PM during the Day between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Libby, Montana, United States
JulAug
11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th
Day
Night
11th Jul 202696 AMAQI
11th Jul 2026147 AMAQI
11th Jul 2026128 AMAQI
11th Jul 2026179 AMAQI
11th Jul 20261610 AMAQI
11th Jul 2026811 AMAQI
11th Jul 2026912 PMAQI
11th Jul 2026301 PMAQI
11th Jul 2026232 PMAQI
11th Jul 202693 PMAQI
11th Jul 2026164 PMAQI
11th Jul 2026215 PMAQI
11th Jul 2026256 PMAQI
11th Jul 2026137 PMAQI
11th Jul 2026138 PMAQI
11th Jul 2026129 PMAQI
11th Jul 20261210 PMAQI
11th Jul 20262111 PMAQI
12th Jul 20262712 AMAQI
12th Jul 2026201 AMAQI
12th Jul 2026192 AMAQI
12th Jul 2026273 AMAQI
12th Jul 2026274 AMAQI
12th Jul 2026295 AMAQI
25°C17/30°C
12th Jul 2026206 AMAQI
12th Jul 2026177 AMAQI
12th Jul 2026218 AMAQI
12th Jul 2026219 AMAQI
12th Jul 20262710 AMAQI
12th Jul 20263111 AMAQI
12th Jul 20262712 PMAQI
12th Jul 2026251 PMAQI
12th Jul 2026252 PMAQI
12th Jul 2026233 PMAQI
12th Jul 2026204 PMAQI
12th Jul 2026245 PMAQI
12th Jul 2026236 PMAQI
12th Jul 2026107 PMAQI
12th Jul 2026208 PMAQI
12th Jul 2026189 PMAQI
12th Jul 20262010 PMAQI
12th Jul 20262111 PMAQI
13th Jul 2026812 AMAQI
13th Jul 2026101 AMAQI
13th Jul 2026102 AMAQI
13th Jul 2026213 AMAQI
13th Jul 2026144 AMAQI
13th Jul 2026105 AMAQI
23°C16/27°C
13th Jul 2026126 AMAQI
13th Jul 2026207 AMAQI
13th Jul 2026428 AMAQI
13th Jul 2026649 AMAQI
13th Jul 20263810 AMAQI
13th Jul 20264811 AMAQI
13th Jul 20264212 PMAQI
13th Jul 2026381 PMAQI
13th Jul 2026312 PMAQI
13th Jul 2026313 PMAQI
13th Jul 2026274 PMAQI
13th Jul 2026255 PMAQI
13th Jul 2026266 PMAQI
13th Jul 2026277 PMAQI
13th Jul 2026218 PMAQI
13th Jul 2026259 PMAQI
13th Jul 20262710 PMAQI
13th Jul 20263611 PMAQI
14th Jul 20264212 AMAQI
14th Jul 2026361 AMAQI
14th Jul 2026332 AMAQI
14th Jul 2026313 AMAQI
14th Jul 2026334 AMAQI
14th Jul 2026185 AMAQI
23°C11/32°C
14th Jul 2026296 AMAQI
14th Jul 2026327 AMAQI
14th Jul 2026428 AMAQI
14th Jul 2026389 AMAQI
14th Jul 20265310 AMAQI
14th Jul 20263511 AMAQI
14th Jul 20263612 PMAQI
14th Jul 2026461 PMAQI
14th Jul 2026402 PMAQI
14th Jul 2026243 PMAQI
14th Jul 2026264 PMAQI
14th Jul 2026385 PMAQI
14th Jul 2026256 PMAQI
14th Jul 2026297 PMAQI
14th Jul 2026198 PMAQI
14th Jul 2026189 PMAQI
14th Jul 20261610 PMAQI
14th Jul 20261811 PMAQI
15th Jul 20262112 AMAQI
15th Jul 2026231 AMAQI
15th Jul 2026232 AMAQI
15th Jul 2026253 AMAQI
15th Jul 2026234 AMAQI
15th Jul 2026275 AMAQI
21°C14/29°C
15th Jul 2026256 AMAQI
15th Jul 2026277 AMAQI
15th Jul 2026428 AMAQI
15th Jul 2026409 AMAQI
15th Jul 20264210 AMAQI
15th Jul 20264811 AMAQI
15th Jul 20263612 PMAQI
15th Jul 2026341 PMAQI
15th Jul 2026462 PMAQI
15th Jul 2026423 PMAQI
15th Jul 2026424 PMAQI
15th Jul 2026445 PMAQI
15th Jul 2026426 PMAQI
15th Jul 2026387 PMAQI
15th Jul 2026388 PMAQI
15th Jul 2026369 PMAQI
15th Jul 20265010 PMAQI
15th Jul 20267311 PMAQI
16th Jul 20264412 AMAQI
16th Jul 2026201 AMAQI
16th Jul 2026362 AMAQI
16th Jul 2026303 AMAQI
16th Jul 2026434 AMAQI
16th Jul 2026645 AMAQI
23°C14/32°C
16th Jul 2026516 AMAQI
16th Jul 2026287 AMAQI
16th Jul 2026468 AMAQI
16th Jul 2026429 AMAQI
16th Jul 20263810 AMAQI
16th Jul 20264411 AMAQI
16th Jul 20263612 PMAQI
16th Jul 2026511 PMAQI
16th Jul 2026462 PMAQI
16th Jul 2026463 PMAQI
16th Jul 2026264 PMAQI
16th Jul 2026375 PMAQI
16th Jul 2026386 PMAQI
16th Jul 2026267 PMAQI
16th Jul 2026248 PMAQI
16th Jul 2026409 PMAQI
16th Jul 20263010 PMAQI
16th Jul 20264911 PMAQI
17th Jul 20263312 AMAQI
17th Jul 2026401 AMAQI
17th Jul 2026422 AMAQI
17th Jul 2026513 AMAQI
17th Jul 2026514 AMAQI
17th Jul 2026485 AMAQI
26°C16/35°C
17th Jul 2026526 AMAQI
17th Jul 2026467 AMAQI
17th Jul 2026508 AMAQI
17th Jul 2026429 AMAQI
17th Jul 20263810 AMAQI
17th Jul 20264411 AMAQI
17th Jul 20264212 PMAQI
17th Jul 2026401 PMAQI
17th Jul 2026382 PMAQI
17th Jul 2026383 PMAQI
17th Jul 2026404 PMAQI
17th Jul 2026525 PMAQI
17th Jul 2026856 PMAQI
17th Jul 2026767 PMAQI
17th Jul 2026408 PMAQI
17th Jul 2026409 PMAQI
17th Jul 20265210 PMAQI
17th Jul 20265711 PMAQI
18th Jul 20265012 AMAQI
18th Jul 2026511 AMAQI
18th Jul 2026562 AMAQI
18th Jul 2026593 AMAQI
18th Jul 2026624 AMAQI
18th Jul 2026645 AMAQI
28°C20/35°C
18th Jul 2026696 AMAQI
18th Jul 2026767 AMAQI
18th Jul 2026678 AMAQI
18th Jul 2026649 AMAQI
18th Jul 20266710 AMAQI
18th Jul 20267411 AMAQI
18th Jul 20267212 PMAQI
18th Jul 2026731 PMAQI
18th Jul 2026792 PMAQI
18th Jul 2026763 PMAQI
18th Jul 2026604 PMAQI
18th Jul 2026635 PMAQI
18th Jul 2026546 PMAQI
18th Jul 2026507 PMAQI
18th Jul 2026428 PMAQI
18th Jul 2026539 PMAQI
18th Jul 20265010 PMAQI
18th Jul 20265311 PMAQI
19th Jul 20266012 AMAQI
19th Jul 2026691 AMAQI
19th Jul 2026642 AMAQI
19th Jul 2026763 AMAQI
19th Jul 2026784 AMAQI
19th Jul 2026725 AMAQI
26°C18/31°C
19th Jul 2026676 AMAQI
19th Jul 2026677 AMAQI
19th Jul 2026668 AMAQI
19th Jul 2026689 AMAQI
19th Jul 20266510 AMAQI
19th Jul 20266211 AMAQI
19th Jul 20265812 PMAQI
19th Jul 2026551 PMAQI
19th Jul 2026512 PMAQI
19th Jul 2026403 PMAQI
19th Jul 2026384 PMAQI
19th Jul 2026405 PMAQI
19th Jul 2026556 PMAQI
19th Jul 2026557 PMAQI
19th Jul 2026498 PMAQI
19th Jul 2026449 PMAQI
19th Jul 20264810 PMAQI
19th Jul 20265311 PMAQI
20th Jul 20265512 AMAQI
20th Jul 2026581 AMAQI
20th Jul 2026572 AMAQI
20th Jul 2026573 AMAQI
20th Jul 2026554 AMAQI
20th Jul 2026525 AMAQI
24°C16/30°C
20th Jul 2026466 AMAQI
20th Jul 2026447 AMAQI
20th Jul 2026508 AMAQI
20th Jul 2026569 AMAQI
20th Jul 20264810 AMAQI
20th Jul 20264611 AMAQI
20th Jul 20264212 PMAQI
20th Jul 2026501 PMAQI
20th Jul 2026502 PMAQI
20th Jul 2026533 PMAQI
20th Jul 2026554 PMAQI
20th Jul 2026605 PMAQI
20th Jul 2026626 PMAQI
20th Jul 2026707 PMAQI
20th Jul 2026748 PMAQI
20th Jul 20267110 PMAQI
20th Jul 20267611 PMAQI
21st Jul 20267312 AMAQI
21st Jul 2026701 AMAQI
21st Jul 2026652 AMAQI
21st Jul 2026533 AMAQI
21st Jul 2026544 AMAQI
21st Jul 2026625 AMAQI
24°C15/32°C
21st Jul 2026626 AMAQI
21st Jul 2026577 AMAQI
21st Jul 2026628 AMAQI
21st Jul 2026629 AMAQI
21st Jul 20266510 AMAQI
21st Jul 20265511 AMAQI
21st Jul 20265912 PMAQI
21st Jul 2026631 PMAQI
21st Jul 2026642 PMAQI
21st Jul 2026543 PMAQI
21st Jul 2026524 PMAQI
21st Jul 2026535 PMAQI
21st Jul 2026486 PMAQI
21st Jul 2026567 PMAQI
21st Jul 2026568 PMAQI
21st Jul 2026489 PMAQI
21st Jul 20265110 PMAQI
21st Jul 20265611 PMAQI
22nd Jul 20265412 AMAQI
22nd Jul 2026571 AMAQI
22nd Jul 2026562 AMAQI
22nd Jul 2026543 AMAQI
22nd Jul 2026524 AMAQI
22nd Jul 2026535 AMAQI
26°C19/34°C
22nd Jul 2026596 AMAQI
22nd Jul 2026577 AMAQI
22nd Jul 2026588 AMAQI
22nd Jul 2026609 AMAQI
22nd Jul 20266510 AMAQI
22nd Jul 20265911 AMAQI
22nd Jul 20266312 PMAQI
22nd Jul 2026621 PMAQI
22nd Jul 2026632 PMAQI
22nd Jul 2026663 PMAQI
22nd Jul 2026654 PMAQI
22nd Jul 2026695 PMAQI
22nd Jul 2026736 PMAQI
22nd Jul 2026727 PMAQI
22nd Jul 2026728 PMAQI
22nd Jul 2026689 PMAQI
22nd Jul 20266710 PMAQI
22nd Jul 20266811 PMAQI
23rd Jul 20266712 AMAQI
23rd Jul 2026661 AMAQI
23rd Jul 2026682 AMAQI
23rd Jul 2026693 AMAQI
23rd Jul 2026694 AMAQI
23rd Jul 2026675 AMAQI
27°C16/35°C
23rd Jul 2026706 AMAQI
23rd Jul 2026707 AMAQI
23rd Jul 2026698 AMAQI
23rd Jul 2026709 AMAQI
23rd Jul 20267610 AMAQI
23rd Jul 20268511 AMAQI
23rd Jul 20269412 PMAQI
23rd Jul 2026921 PMAQI
23rd Jul 2026882 PMAQI
23rd Jul 2026873 PMAQI
23rd Jul 2026904 PMAQI
23rd Jul 2026855 PMAQI
23rd Jul 2026796 PMAQI
23rd Jul 2026717 PMAQI
23rd Jul 2026808 PMAQI
23rd Jul 2026809 PMAQI
23rd Jul 20268510 PMAQI
23rd Jul 20269011 PMAQI
24th Jul 20268812 AMAQI
24th Jul 2026921 AMAQI
24th Jul 2026942 AMAQI
24th Jul 2026903 AMAQI
24th Jul 2026954 AMAQI
24th Jul 2026945 AMAQI
28°C18/35°C
24th Jul 2026876 AMAQI
24th Jul 2026947 AMAQI
24th Jul 2026948 AMAQI
24th Jul 2026929 AMAQI
24th Jul 20269210 AMAQI
24th Jul 20269011 AMAQI
24th Jul 20268912 PMAQI
24th Jul 2026851 PMAQI
24th Jul 2026922 PMAQI
24th Jul 2026923 PMAQI
24th Jul 2026794 PMAQI
24th Jul 2026715 PMAQI
24th Jul 2026636 PMAQI
24th Jul 2026507 PMAQI
24th Jul 2026658 PMAQI
24th Jul 2026609 PMAQI
24th Jul 20266210 PMAQI
24th Jul 20266211 PMAQI
25th Jul 20265412 AMAQI
25th Jul 2026541 AMAQI
25th Jul 2026472 AMAQI
25th Jul 2026513 AMAQI
25th Jul 2026424 AMAQI
25th Jul 2026425 AMAQI
28°C20/33°C
25th Jul 2026486 AMAQI
25th Jul 2026527 AMAQI
25th Jul 2026508 AMAQI
25th Jul 2026549 AMAQI
25th Jul 20265210 AMAQI
25th Jul 20264811 AMAQI
25th Jul 20264812 PMAQI
25th Jul 2026481 PMAQI
25th Jul 2026462 PMAQI
25th Jul 2026483 PMAQI
25th Jul 2026564 PMAQI
25th Jul 2026515 PMAQI
25th Jul 2026596 PMAQI
25th Jul 2026707 PMAQI
25th Jul 2026768 PMAQI
25th Jul 2026709 PMAQI
25th Jul 20268010 PMAQI
25th Jul 20269011 PMAQI
26th Jul 20269912 AMAQI
26th Jul 20261121 AMAQI
26th Jul 20261082 AMAQI
26th Jul 20261293 AMAQI
26th Jul 20261144 AMAQI
26th Jul 20261115 AMAQI
26°C15/33°C
26th Jul 20261046 AMAQI
26th Jul 2026977 AMAQI
26th Jul 2026888 AMAQI
26th Jul 2026819 AMAQI
26th Jul 20268010 AMAQI
26th Jul 20268411 AMAQI
26th Jul 20267312 PMAQI
26th Jul 2026621 PMAQI
26th Jul 2026522 PMAQI
26th Jul 2026523 PMAQI
26th Jul 2026484 PMAQI
26th Jul 2026465 PMAQI
26th Jul 2026586 PMAQI
26th Jul 2026557 PMAQI
26th Jul 2026588 PMAQI
26th Jul 2026569 PMAQI
26th Jul 20265710 PMAQI
26th Jul 20265211 PMAQI
27th Jul 20265812 AMAQI
27th Jul 2026551 AMAQI
27th Jul 2026582 AMAQI
27th Jul 2026563 AMAQI
27th Jul 2026574 AMAQI
27th Jul 2026565 AMAQI
25°C18/30°C
27th Jul 2026606 AMAQI
27th Jul 2026577 AMAQI
27th Jul 2026588 AMAQI
27th Jul 2026609 AMAQI
27th Jul 20266010 AMAQI
27th Jul 20265911 AMAQI
27th Jul 20265712 PMAQI
27th Jul 2026631 PMAQI
27th Jul 2026642 PMAQI
27th Jul 2026843 PMAQI
27th Jul 2026824 PMAQI
27th Jul 2026655 PMAQI
27th Jul 2026576 PMAQI
27th Jul 2026577 PMAQI
27th Jul 2026548 PMAQI
27th Jul 2026549 PMAQI
27th Jul 20265510 PMAQI
27th Jul 20265311 PMAQI
28th Jul 20265312 AMAQI
28th Jul 2026541 AMAQI
28th Jul 2026592 AMAQI
28th Jul 2026593 AMAQI
28th Jul 2026594 AMAQI
28th Jul 2026595 AMAQI
23°C14/30°C
28th Jul 2026626 AMAQI
28th Jul 2026597 AMAQI
28th Jul 2026608 AMAQI
28th Jul 2026589 AMAQI
28th Jul 20266510 AMAQI
28th Jul 20266711 AMAQI
28th Jul 20266212 PMAQI
28th Jul 2026661 PMAQI
28th Jul 2026642 PMAQI
28th Jul 2026653 PMAQI
28th Jul 2026674 PMAQI
28th Jul 2026735 PMAQI
28th Jul 2026726 PMAQI
28th Jul 2026867 PMAQI
28th Jul 2026768 PMAQI
28th Jul 2026819 PMAQI
28th Jul 20267610 PMAQI
28th Jul 20266711 PMAQI
29th Jul 20266912 AMAQI
29th Jul 2026701 AMAQI
29th Jul 2026712 AMAQI
29th Jul 2026623 AMAQI
29th Jul 2026654 AMAQI
29th Jul 2026665 AMAQI
23°C15/31°C
29th Jul 2026716 AMAQI
29th Jul 2026707 AMAQI
29th Jul 2026738 AMAQI
29th Jul 2026739 AMAQI
29th Jul 20266710 AMAQI
29th Jul 20267411 AMAQI
29th Jul 20267612 PMAQI
29th Jul 2026711 PMAQI
29th Jul 2026642 PMAQI
29th Jul 2026553 PMAQI
29th Jul 2026554 PMAQI
29th Jul 2026575 PMAQI
29th Jul 2026696 PMAQI
29th Jul 2026767 PMAQI
29th Jul 2026748 PMAQI
29th Jul 2026749 PMAQI
29th Jul 20267010 PMAQI
29th Jul 20266511 PMAQI
30th Jul 20266612 AMAQI
30th Jul 2026681 AMAQI
30th Jul 2026692 AMAQI
30th Jul 2026733 AMAQI
30th Jul 2026694 AMAQI
30th Jul 2026705 AMAQI
24°C16/30°C
30th Jul 2026706 AMAQI
30th Jul 2026717 AMAQI
30th Jul 2026718 AMAQI
30th Jul 2026699 AMAQI
30th Jul 20267010 AMAQI
30th Jul 20267011 AMAQI
30th Jul 20267012 PMAQI
30th Jul 2026681 PMAQI
30th Jul 2026722 PMAQI
30th Jul 2026693 PMAQI
30th Jul 2026664 PMAQI
30th Jul 2026635 PMAQI
30th Jul 2026626 PMAQI
30th Jul 2026787 PMAQI
30th Jul 2026828 PMAQI
30th Jul 2026879 PMAQI
30th Jul 20268710 PMAQI
30th Jul 20268811 PMAQI
31st Jul 20268312 AMAQI
31st Jul 2026861 AMAQI
31st Jul 2026902 AMAQI
31st Jul 2026963 AMAQI
31st Jul 2026904 AMAQI
31st Jul 2026885 AMAQI
24°C14/32°C
31st Jul 2026876 AMAQI
31st Jul 2026857 AMAQI
31st Jul 2026898 AMAQI
31st Jul 2026819 AMAQI
31st Jul 20268810 AMAQI
31st Jul 20268711 AMAQI
31st Jul 20268312 PMAQI
31st Jul 2026871 PMAQI
31st Jul 2026832 PMAQI
31st Jul 2026843 PMAQI
31st Jul 2026864 PMAQI
31st Jul 2026805 PMAQI
31st Jul 2026626 PMAQI
31st Jul 2026637 PMAQI
31st Jul 2026588 PMAQI
31st Jul 2026519 PMAQI
31st Jul 20265810 PMAQI
31st Jul 20265811 PMAQI
1st Aug 20266012 AMAQI
1st Aug 2026461 AMAQI
1st Aug 2026462 AMAQI
1st Aug 2026563 AMAQI
1st Aug 2026564 AMAQI
1st Aug 2026535 AMAQI
25°C15/34°C
1st Aug 2026526 AMAQI
1st Aug 2026527 AMAQI
1st Aug 2026528 AMAQI
1st Aug 2026579 AMAQI
1st Aug 20264410 AMAQI
1st Aug 20266211 AMAQI
1st Aug 20265912 PMAQI
1st Aug 2026401 PMAQI
1st Aug 2026442 PMAQI
1st Aug 2026523 PMAQI
1st Aug 2026604 PMAQI
1st Aug 2026665 PMAQI
1st Aug 2026666 PMAQI
1st Aug 2026727 PMAQI
1st Aug 2026748 PMAQI
1st Aug 2026609 PMAQI
1st Aug 20266010 PMAQI
1st Aug 20264611 PMAQI
2nd Aug 20265512 AMAQI
2nd Aug 2026701 AMAQI
2nd Aug 2026792 AMAQI
2nd Aug 2026783 AMAQI
2nd Aug 2026814 AMAQI
2nd Aug 2026765 AMAQI
25°C17/31°C
2nd Aug 2026906 AMAQI
2nd Aug 20261227 AMAQI
2nd Aug 20261528 AMAQI
2nd Aug 20261529 AMAQI
2nd Aug 202615610 AMAQI
2nd Aug 202616011 AMAQI
2nd Aug 202616612 PMAQI
2nd Aug 20261721 PMAQI
2nd Aug 20261742 PMAQI
2nd Aug 20261713 PMAQI
2nd Aug 20261714 PMAQI
2nd Aug 20261725 PMAQI
2nd Aug 20261706 PMAQI
2nd Aug 20261687 PMAQI
2nd Aug 20261678 PMAQI
2nd Aug 20261609 PMAQI
2nd Aug 202616110 PMAQI
2nd Aug 202616211 PMAQI
3rd Aug 202616112 AMAQI
3rd Aug 20261621 AMAQI
3rd Aug 20261622 AMAQI
3rd Aug 20261643 AMAQI
3rd Aug 20261604 AMAQI
3rd Aug 20261585 AMAQI
19°C15/22°C
3rd Aug 20261606 AMAQI
3rd Aug 20261607 AMAQI
3rd Aug 20261578 AMAQI
3rd Aug 20261589 AMAQI
3rd Aug 202615810 AMAQI
3rd Aug 202615611 AMAQI
3rd Aug 202615512 PMAQI
3rd Aug 20261561 PMAQI
3rd Aug 20261382 PMAQI
3rd Aug 20261103 PMAQI
3rd Aug 2026924 PMAQI
3rd Aug 2026825 PMAQI
3rd Aug 2026706 PMAQI
3rd Aug 2026737 PMAQI
3rd Aug 2026698 PMAQI
3rd Aug 2026669 PMAQI
3rd Aug 20266410 PMAQI
3rd Aug 20267011 PMAQI
4th Aug 20266612 AMAQI
4th Aug 2026691 AMAQI
4th Aug 2026652 AMAQI
4th Aug 2026713 AMAQI
4th Aug 2026694 AMAQI
4th Aug 2026685 AMAQI
18°C10/25°C
4th Aug 2026696 AMAQI
4th Aug 2026697 AMAQI
4th Aug 2026648 AMAQI
4th Aug 2026649 AMAQI
4th Aug 20266610 AMAQI
4th Aug 20266911 AMAQI
4th Aug 20267012 PMAQI
4th Aug 2026721 PMAQI
4th Aug 2026742 PMAQI
4th Aug 2026723 PMAQI
4th Aug 2026694 PMAQI
4th Aug 2026705 PMAQI
4th Aug 2026686 PMAQI
4th Aug 2026567 PMAQI
4th Aug 2026558 PMAQI
4th Aug 2026589 PMAQI
4th Aug 20265910 PMAQI
4th Aug 20266411 PMAQI
5th Aug 20266712 AMAQI
5th Aug 2026671 AMAQI
5th Aug 2026672 AMAQI
5th Aug 2026603 AMAQI
5th Aug 2026564 AMAQI
5th Aug 2026585 AMAQI
20°C10/28°C
5th Aug 2026566 AMAQI
5th Aug 2026567 AMAQI
5th Aug 2026588 AMAQI
5th Aug 2026579 AMAQI
5th Aug 20266010 AMAQI
5th Aug 20266411 AMAQI
5th Aug 20266812 PMAQI
5th Aug 2026621 PMAQI
5th Aug 2026672 PMAQI
5th Aug 2026663 PMAQI
5th Aug 2026764 PMAQI
5th Aug 2026965 PMAQI
5th Aug 2026966 PMAQI
5th Aug 20261057 PMAQI
5th Aug 2026998 PMAQI
5th Aug 20261129 PMAQI
5th Aug 202611810 PMAQI
5th Aug 202612411 PMAQI
6th Aug 202613212 AMAQI
6th Aug 20261321 AMAQI
6th Aug 20261222 AMAQI
6th Aug 20261293 AMAQI
6th Aug 20261294 AMAQI
6th Aug 20261285 AMAQI
22°C13/31°C
6th Aug 20261206 AMAQI
6th Aug 20261157 AMAQI
6th Aug 20261248 AMAQI
6th Aug 20261159 AMAQI
6th Aug 202611410 AMAQI
6th Aug 202611411 AMAQI
6th Aug 202612412 PMAQI
6th Aug 20261191 PMAQI
6th Aug 20261222 PMAQI
6th Aug 20261183 PMAQI
6th Aug 20261184 PMAQI
6th Aug 20261205 PMAQI
6th Aug 20261206 PMAQI
6th Aug 20261507 PMAQI
6th Aug 20261528 PMAQI
6th Aug 20261509 PMAQI
6th Aug 202615210 PMAQI
6th Aug 202615211 PMAQI
7th Aug 202615512 AMAQI
7th Aug 20261561 AMAQI
7th Aug 20261522 AMAQI
7th Aug 20261543 AMAQI
7th Aug 20261524 AMAQI
7th Aug 20261545 AMAQI
24°C15/32°C
7th Aug 20261536 AMAQI
7th Aug 20261497 AMAQI
7th Aug 20261468 AMAQI
7th Aug 20261479 AMAQI
7th Aug 202614410 AMAQI
7th Aug 202614611 AMAQI
7th Aug 202615012 PMAQI
7th Aug 20261521 PMAQI
7th Aug 20261502 PMAQI
7th Aug 20261483 PMAQI
7th Aug 20261524 PMAQI
7th Aug 20261515 PMAQI
7th Aug 20261326 PMAQI
7th Aug 20261467 PMAQI
7th Aug 20261318 PMAQI
7th Aug 20261349 PMAQI
7th Aug 202613910 PMAQI
7th Aug 202612211 PMAQI
8th Aug 202612212 AMAQI
8th Aug 20261261 AMAQI
8th Aug 20261282 AMAQI
8th Aug 20261223 AMAQI
8th Aug 20261224 AMAQI
8th Aug 20261245 AMAQI
24°C14/34°C
8th Aug 20261196 AMAQI
8th Aug 20261187 AMAQI
8th Aug 20261118 AMAQI
8th Aug 20261129 AMAQI
8th Aug 202611210 AMAQI
8th Aug 202610211 AMAQI
8th Aug 202610412 PMAQI
8th Aug 20261041 PMAQI
8th Aug 20261102 PMAQI
8th Aug 20261123 PMAQI
8th Aug 20261004 PMAQI
8th Aug 20261065 PMAQI
8th Aug 20261006 PMAQI
8th Aug 20261257 PMAQI
8th Aug 20261288 PMAQI
8th Aug 20261229 PMAQI
8th Aug 202612610 PMAQI
8th Aug 202613211 PMAQI
9th Aug 202612412 AMAQI
9th Aug 20261311 AMAQI
9th Aug 20261472 AMAQI
9th Aug 20261563 AMAQI
9th Aug 20261584 AMAQI
9th Aug 20261605 AMAQI
25°C17/31°C
9th Aug 20261616 AMAQI
6 AM9th Aug 20261647 AMAQI
9th Aug 20261658 AMAQI
9th Aug 20261629 AMAQI
9th Aug 202616610 AMAQI
9th Aug 202616611 AMAQI
9th Aug 202616512 PMAQI
9th Aug 20261671 PMAQI
1 PM9th Aug 20261722 PMAQI
9th Aug 20261703 PMAQI
9th Aug 20261704 PMAQI
9th Aug 20261745 PMAQI
9th Aug 20261746 PMAQI
9th Aug 20261687 PMAQI
9th Aug 20261728 PMAQI
9th Aug 20261689 PMAQI
9 PM9th Aug 202616410 PMAQI
9th Aug 202616211 PMAQI
1 AM
5 AM
22°C14/31°C
Day time
Avg. Highest Time
8 AM - 9 PM
73AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
6 AM - 9 PM
73AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 9 PM (Avg. 73), while the lowest AQI was between 6 AM to 9 PM (Avg. 73).
Night time
Avg. Highest Time
11 PM
75AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 10 PM
71AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 PM to 11 PM (Avg. 75), while the lowest AQI was between 12 AM to 10 PM (Avg. 71).
2026 Days Vs Air Quality
Libby, Montana, United States
2026
87%
190
10%
21
3%
6
0.4%
1
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Good
190 DaysModerate
21 DaysPoor
6 DaysUnhealthy
1 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 221 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
Libby, 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
47AQI (US)
47AQI (US)
2nd January 2026
52AQI (US)
52AQI (US)
3rd January 2026
44AQI (US)
44AQI (US)
4th January 2026
35AQI (US)
35AQI (US)
5th January 2026
27AQI (US)
27AQI (US)
6th January 2026
26AQI (US)
26AQI (US)
7th January 2026
21AQI (US)
21AQI (US)
8th January 2026
26AQI (US)
26AQI (US)
9th January 2026
36AQI (US)
36AQI (US)
10th January 2026
30AQI (US)
30AQI (US)
11th January 2026
36AQI (US)
36AQI (US)
12th January 2026
35AQI (US)
35AQI (US)
13th January 2026
47AQI (US)
47AQI (US)
14th January 2026
28AQI (US)
28AQI (US)
15th January 2026
25AQI (US)
25AQI (US)
16th January 2026
27AQI (US)
27AQI (US)
17th January 2026
25AQI (US)
25AQI (US)
18th January 2026
22AQI (US)
22AQI (US)
19th January 2026
28AQI (US)
28AQI (US)
20th January 2026
33AQI (US)
33AQI (US)
21st January 2026
36AQI (US)
36AQI (US)
22nd January 2026
33AQI (US)
33AQI (US)
23rd January 2026
39AQI (US)
39AQI (US)
24th January 2026
37AQI (US)
37AQI (US)
25th January 2026
32AQI (US)
32AQI (US)
26th January 2026
36AQI (US)
36AQI (US)
27th January 2026
51AQI (US)
51AQI (US)
28th January 2026
34AQI (US)
34AQI (US)
29th January 2026
30AQI (US)
30AQI (US)
30th January 2026
33AQI (US)
33AQI (US)
31st January 2026
25AQI (US)
25AQI (US)
1st February 2026
39AQI (US)
39AQI (US)
2nd February 2026
32AQI (US)
32AQI (US)
3rd February 2026
28AQI (US)
28AQI (US)
4th February 2026
30AQI (US)
30AQI (US)
5th February 2026
38AQI (US)
38AQI (US)
6th February 2026
26AQI (US)
26AQI (US)
7th February 2026
32AQI (US)
32AQI (US)
8th February 2026
28AQI (US)
28AQI (US)
9th February 2026
31AQI (US)
31AQI (US)
10th February 2026
27AQI (US)
27AQI (US)
11th February 2026
25AQI (US)
25AQI (US)
12th February 2026
37AQI (US)
37AQI (US)
13th February 2026
44AQI (US)
44AQI (US)
14th February 2026
38AQI (US)
38AQI (US)
15th February 2026
18AQI (US)
18AQI (US)
16th February 2026
24AQI (US)
24AQI (US)
17th February 2026
43AQI (US)
43AQI (US)
18th February 2026
28AQI (US)
28AQI (US)
19th February 2026
28AQI (US)
28AQI (US)
20th February 2026
25AQI (US)
25AQI (US)
21st February 2026
37AQI (US)
37AQI (US)
22nd February 2026
30AQI (US)
30AQI (US)
23rd February 2026
29AQI (US)
29AQI (US)
24th February 2026
41AQI (US)
41AQI (US)
25th February 2026
24AQI (US)
24AQI (US)
26th February 2026
22AQI (US)
22AQI (US)
27th February 2026
19AQI (US)
19AQI (US)
28th February 2026
23AQI (US)
23AQI (US)
1st March 2026
30AQI (US)
30AQI (US)
2nd March 2026
38AQI (US)
38AQI (US)
3rd March 2026
37AQI (US)
37AQI (US)
4th March 2026
35AQI (US)
35AQI (US)
5th March 2026
29AQI (US)
29AQI (US)
6th March 2026
22AQI (US)
22AQI (US)
7th March 2026
29AQI (US)
29AQI (US)
8th March 2026
24AQI (US)
24AQI (US)
9th March 2026
21AQI (US)
21AQI (US)
10th March 2026
22AQI (US)
22AQI (US)
11th March 2026
28AQI (US)
28AQI (US)
12th March 2026
25AQI (US)
25AQI (US)
13th March 2026
34AQI (US)
34AQI (US)
14th March 2026
26AQI (US)
26AQI (US)
15th March 2026
20AQI (US)
20AQI (US)
16th March 2026
17AQI (US)
17AQI (US)
17th March 2026
23AQI (US)
23AQI (US)
18th March 2026
19AQI (US)
19AQI (US)
19th March 2026
22AQI (US)
22AQI (US)
20th March 2026
36AQI (US)
36AQI (US)
21st March 2026
28AQI (US)
28AQI (US)
22nd March 2026
20AQI (US)
20AQI (US)
23rd March 2026
23AQI (US)
23AQI (US)
24th March 2026
32AQI (US)
32AQI (US)
25th March 2026
28AQI (US)
28AQI (US)
26th March 2026
30AQI (US)
30AQI (US)
27th March 2026
22AQI (US)
22AQI (US)
28th March 2026
23AQI (US)
23AQI (US)
29th March 2026
37AQI (US)
37AQI (US)
30th March 2026
30AQI (US)
30AQI (US)
31st March 2026
24AQI (US)
24AQI (US)
1st April 2026
23AQI (US)
23AQI (US)
2nd April 2026
25AQI (US)
25AQI (US)
3rd April 2026
19AQI (US)
19AQI (US)
4th April 2026
15AQI (US)
15AQI (US)
5th April 2026
19AQI (US)
19AQI (US)
6th April 2026
26AQI (US)
26AQI (US)
7th April 2026
27AQI (US)
27AQI (US)
8th April 2026
23AQI (US)
23AQI (US)
9th April 2026
26AQI (US)
26AQI (US)
10th April 2026
21AQI (US)
21AQI (US)
11th April 2026
24AQI (US)
24AQI (US)
12th April 2026
30AQI (US)
30AQI (US)
13th April 2026
28AQI (US)
28AQI (US)
14th April 2026
25AQI (US)
25AQI (US)
15th April 2026
31AQI (US)
31AQI (US)
16th April 2026
28AQI (US)
28AQI (US)
17th April 2026
18th April 2026
26AQI (US)
26AQI (US)
19th April 2026
24AQI (US)
24AQI (US)
20th April 2026
20AQI (US)
20AQI (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
21AQI (US)
21AQI (US)
26th April 2026
17AQI (US)
17AQI (US)
27th April 2026
27AQI (US)
27AQI (US)
28th April 2026
15AQI (US)
15AQI (US)
29th April 2026
24AQI (US)
24AQI (US)
30th April 2026
25AQI (US)
25AQI (US)
1st May 2026
18AQI (US)
18AQI (US)
2nd May 2026
19AQI (US)
19AQI (US)
3rd May 2026
20AQI (US)
20AQI (US)
4th May 2026
21AQI (US)
21AQI (US)
5th May 2026
21AQI (US)
21AQI (US)
6th May 2026
21AQI (US)
21AQI (US)
7th May 2026
20AQI (US)
20AQI (US)
8th May 2026
21AQI (US)
21AQI (US)
9th May 2026
10th May 2026
19AQI (US)
19AQI (US)
11th May 2026
16AQI (US)
16AQI (US)
12th May 2026
16AQI (US)
16AQI (US)
13th May 2026
21AQI (US)
21AQI (US)
14th May 2026
20AQI (US)
20AQI (US)
15th May 2026
30AQI (US)
30AQI (US)
16th May 2026
51AQI (US)
51AQI (US)
17th May 2026
49AQI (US)
49AQI (US)
18th May 2026
35AQI (US)
35AQI (US)
19th May 2026
28AQI (US)
28AQI (US)
20th May 2026
21AQI (US)
21AQI (US)
21st May 2026
20AQI (US)
20AQI (US)
22nd May 2026
29AQI (US)
29AQI (US)
23rd May 2026
30AQI (US)
30AQI (US)
24th May 2026
26AQI (US)
26AQI (US)
25th May 2026
19AQI (US)
19AQI (US)
26th May 2026
24AQI (US)
24AQI (US)
27th May 2026
17AQI (US)
17AQI (US)
28th May 2026
41AQI (US)
41AQI (US)
29th May 2026
16AQI (US)
16AQI (US)
30th May 2026
26AQI (US)
26AQI (US)
31st May 2026
13AQI (US)
13AQI (US)
1st June 2026
22AQI (US)
22AQI (US)
2nd June 2026
27AQI (US)
27AQI (US)
3rd June 2026
29AQI (US)
29AQI (US)
4th June 2026
33AQI (US)
33AQI (US)
5th June 2026
17AQI (US)
17AQI (US)
6th June 2026
11AQI (US)
11AQI (US)
7th June 2026
15AQI (US)
15AQI (US)
8th June 2026
19AQI (US)
19AQI (US)
9th June 2026
17AQI (US)
17AQI (US)
10th June 2026
17AQI (US)
17AQI (US)
11th June 2026
19AQI (US)
19AQI (US)
12th June 2026
19AQI (US)
19AQI (US)
13th June 2026
16AQI (US)
16AQI (US)
14th June 2026
17AQI (US)
17AQI (US)
15th June 2026
18AQI (US)
18AQI (US)
16th June 2026
24AQI (US)
24AQI (US)
17th June 2026
18AQI (US)
18AQI (US)
18th June 2026
16AQI (US)
16AQI (US)
19th June 2026
14AQI (US)
14AQI (US)
20th June 2026
15AQI (US)
15AQI (US)
21st June 2026
17AQI (US)
17AQI (US)
22nd June 2026
14AQI (US)
14AQI (US)
23rd June 2026
21AQI (US)
21AQI (US)
24th June 2026
16AQI (US)
16AQI (US)
25th June 2026
18AQI (US)
18AQI (US)
26th June 2026
16AQI (US)
16AQI (US)
27th June 2026
25AQI (US)
25AQI (US)
28th June 2026
22AQI (US)
22AQI (US)
29th June 2026
51AQI (US)
51AQI (US)
30th June 2026
104AQI (US)
104AQI (US)
1st July 2026
39AQI (US)
39AQI (US)
2nd July 2026
17AQI (US)
17AQI (US)
3rd July 2026
12AQI (US)
12AQI (US)
4th July 2026
17AQI (US)
17AQI (US)
5th July 2026
21AQI (US)
21AQI (US)
6th July 2026
18AQI (US)
18AQI (US)
7th July 2026
18AQI (US)
18AQI (US)
8th July 2026
26AQI (US)
26AQI (US)
9th July 2026
38AQI (US)
38AQI (US)
10th July 2026
26AQI (US)
26AQI (US)
11th July 2026
15AQI (US)
15AQI (US)
12th July 2026
23AQI (US)
23AQI (US)
13th July 2026
27AQI (US)
27AQI (US)
14th July 2026
32AQI (US)
32AQI (US)
15th July 2026
37AQI (US)
37AQI (US)
16th July 2026
39AQI (US)
39AQI (US)
17th July 2026
47AQI (US)
47AQI (US)
18th July 2026
62AQI (US)
62AQI (US)
19th July 2026
58AQI (US)
58AQI (US)
20th July 2026
56AQI (US)
56AQI (US)
21st July 2026
58AQI (US)
58AQI (US)
22nd July 2026
62AQI (US)
62AQI (US)
23rd July 2026
78AQI (US)
78AQI (US)
24th July 2026
82AQI (US)
82AQI (US)
25th July 2026
56AQI (US)
56AQI (US)
26th July 2026
78AQI (US)
78AQI (US)
27th July 2026
60AQI (US)
60AQI (US)
28th July 2026
65AQI (US)
65AQI (US)
29th July 2026
68AQI (US)
68AQI (US)
30th July 2026
72AQI (US)
72AQI (US)
31st July 2026
79AQI (US)
79AQI (US)
1st August 2026
56AQI (US)
56AQI (US)
2nd August 2026
137AQI (US)
137AQI (US)
3rd August 2026
128AQI (US)
128AQI (US)
4th August 2026
66AQI (US)
66AQI (US)
5th August 2026
76AQI (US)
76AQI (US)
6th August 2026
128AQI (US)
128AQI (US)
7th August 2026
146AQI (US)
146AQI (US)
8th August 2026
116AQI (US)
116AQI (US)
9th August 2026
162AQI (US)
162AQI (US)
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
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
33AQI (US)
30AQI (US)
27AQI (US)
23AQI (US)
24AQI (US)
23AQI (US)
45AQI (US)
113AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202633AQI (US)
29
2
28
31
28
29
1
28
1
1
17
14
3
5
1
190
21
6
1
Highest AQI (US) recorded in
August113AQI (US)
Lowest AQI (US) recorded in
June23AQI (US)
202538AQI (US)
6
30
31
30
31
25
6
12
17
1
17
14
17
13
26
5
225
55
1
Highest AQI (US) recorded in
September57AQI (US)
Lowest AQI (US) recorded in
May22AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Most Polluted Year Recorded
2025(Avg.)
38AQI (US)Least Polluted Year Recorded
2026(Avg.)
33AQI (US)Libby's annual 2026 AQI (US) (33) shows an average percentage change of -13.1% (improved AQI (US)) compared to previous years: 2025 (38).
