Country Background

Portage Park, Chicago, Illinois, 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

Portage Park, Chicago, Illinois, United States

2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
6th Aug 2025
94AQI
Lowest AQI recorded on
12th Aug 2025
42AQI


Same Day Analysis (13th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 51 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 13th Aug - 14th Aug 2025

Portage Park, Chicago, Illinois, United States

AQI
Day
Night
.

5 AM13th Aug 2025

8 PM

4 AM14th Aug 2025

Day time
Avg. Highest Time
3PM13th Aug

64AQI

Avg. Lowest Time
5AM13th Aug

41AQI

Night time
Avg. Highest Time
8PM13th Aug

58AQI

Avg. Lowest Time
2AM14th Aug

54AQI

In the last 24 hours,

Portage Park's AQI reached its highest point of 64 at 3 PM during the Day, while the lowest point, 41, was recorded at 5 AM during the Day between 13th Aug and 14th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Portage Park, Chicago, Illinois, United States

JulAug
15th - 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 - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
15th Jul 2025815 AMAQI
15th Jul 2025846 AMAQI
15th Jul 2025907 AMAQI
15th Jul 2025908 AMAQI
15th Jul 2025919 AMAQI
15th Jul 20258610 AMAQI
15th Jul 20257911 AMAQI
15th Jul 20257712 PMAQI
15th Jul 2025731 PMAQI
15th Jul 2025732 PMAQI
15th Jul 2025753 PMAQI
15th Jul 2025754 PMAQI
15th Jul 2025765 PMAQI
15th Jul 2025766 PMAQI
15th Jul 2025827 PMAQI
15th Jul 2025818 PMAQI
15th Jul 2025749 PMAQI
15th Jul 20257610 PMAQI
15th Jul 20257411 PMAQI
16th Jul 20256812 AMAQI
16th Jul 2025651 AMAQI
16th Jul 2025542 AMAQI
16th Jul 2025503 AMAQI
16th Jul 2025484 AMAQI

26°C20/32°C

16th Jul 2025465 AMAQI
16th Jul 2025476 AMAQI
16th Jul 2025477 AMAQI
16th Jul 2025498 AMAQI
16th Jul 2025489 AMAQI
16th Jul 20255010 AMAQI
16th Jul 20255111 AMAQI
16th Jul 20255012 PMAQI
16th Jul 2025511 PMAQI
16th Jul 2025522 PMAQI
16th Jul 2025533 PMAQI
16th Jul 2025534 PMAQI
16th Jul 2025525 PMAQI
16th Jul 2025466 PMAQI
16th Jul 2025507 PMAQI
16th Jul 2025508 PMAQI
16th Jul 2025419 PMAQI
16th Jul 20254210 PMAQI
16th Jul 20253911 PMAQI
17th Jul 20253512 AMAQI
17th Jul 2025301 AMAQI
17th Jul 2025302 AMAQI
17th Jul 2025273 AMAQI
17th Jul 2025274 AMAQI

28°C24/32°C

17th Jul 2025275 AMAQI
17th Jul 2025266 AMAQI
17th Jul 2025257 AMAQI
17th Jul 2025278 AMAQI
17th Jul 2025269 AMAQI
17th Jul 20252710 AMAQI
17th Jul 20252711 AMAQI
17th Jul 20252712 PMAQI
17th Jul 2025261 PMAQI
17th Jul 2025272 PMAQI
17th Jul 2025283 PMAQI
17th Jul 2025274 PMAQI
17th Jul 2025275 PMAQI
17th Jul 2025276 PMAQI
17th Jul 2025247 PMAQI
17th Jul 2025248 PMAQI
17th Jul 2025269 PMAQI
17th Jul 20252410 PMAQI
17th Jul 20252411 PMAQI
18th Jul 20252412 AMAQI
18th Jul 2025241 AMAQI
18th Jul 2025262 AMAQI
18th Jul 2025253 AMAQI
18th Jul 2025244 AMAQI

20°C19/21°C

18th Jul 2025245 AMAQI
18th Jul 2025246 AMAQI
18th Jul 2025237 AMAQI
18th Jul 2025238 AMAQI
18th Jul 2025249 AMAQI
18th Jul 20252510 AMAQI
18th Jul 20252411 AMAQI
18th Jul 20252412 PMAQI
18th Jul 2025281 PMAQI
18th Jul 2025302 PMAQI
18th Jul 2025303 PMAQI
18th Jul 2025324 PMAQI
18th Jul 2025335 PMAQI
18th Jul 2025346 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025308 PMAQI
18th Jul 2025449 PMAQI
18th Jul 20254310 PMAQI
18th Jul 20254311 PMAQI
19th Jul 20254412 AMAQI
19th Jul 2025461 AMAQI
19th Jul 2025502 AMAQI
19th Jul 2025523 AMAQI
19th Jul 2025524 AMAQI

22°C18/27°C

19th Jul 2025455 AMAQI
19th Jul 2025396 AMAQI
19th Jul 2025377 AMAQI
19th Jul 2025378 AMAQI
19th Jul 2025389 AMAQI
19th Jul 20253610 AMAQI
19th Jul 20253811 AMAQI
19th Jul 20253812 PMAQI
19th Jul 2025431 PMAQI
19th Jul 2025442 PMAQI
19th Jul 2025413 PMAQI
19th Jul 2025374 PMAQI
19th Jul 2025365 PMAQI
19th Jul 2025356 PMAQI
19th Jul 2025387 PMAQI
19th Jul 2025398 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253010 PMAQI
19th Jul 20252911 PMAQI
20th Jul 20253112 AMAQI
20th Jul 2025301 AMAQI
20th Jul 2025272 AMAQI
20th Jul 2025273 AMAQI
20th Jul 2025244 AMAQI

24°C21/27°C

20th Jul 2025255 AMAQI
20th Jul 2025306 AMAQI
20th Jul 2025307 AMAQI
20th Jul 2025278 AMAQI
20th Jul 2025269 AMAQI
20th Jul 20252310 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252512 PMAQI
20th Jul 2025291 PMAQI
20th Jul 2025292 PMAQI
20th Jul 2025303 PMAQI
20th Jul 2025304 PMAQI
20th Jul 2025315 PMAQI
20th Jul 2025306 PMAQI
20th Jul 2025297 PMAQI
20th Jul 2025288 PMAQI
20th Jul 2025309 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20254511 PMAQI
21st Jul 20255312 AMAQI
21st Jul 2025541 AMAQI
21st Jul 2025872 AMAQI
21st Jul 2025833 AMAQI
21st Jul 2025884 AMAQI

22°C20/22°C

21st Jul 2025875 AMAQI
21st Jul 2025906 AMAQI
21st Jul 2025907 AMAQI
21st Jul 2025818 AMAQI
21st Jul 2025679 AMAQI
21st Jul 20256410 AMAQI
21st Jul 20256411 AMAQI
21st Jul 20256612 PMAQI
21st Jul 2025661 PMAQI
21st Jul 2025742 PMAQI
21st Jul 2025713 PMAQI
21st Jul 2025724 PMAQI
21st Jul 2025715 PMAQI
21st Jul 2025716 PMAQI
21st Jul 2025757 PMAQI
21st Jul 2025798 PMAQI
21st Jul 2025769 PMAQI
21st Jul 20257410 PMAQI
21st Jul 20257611 PMAQI
22nd Jul 20257212 AMAQI
22nd Jul 2025781 AMAQI
22nd Jul 2025812 AMAQI
22nd Jul 2025803 AMAQI
22nd Jul 2025824 AMAQI

22°C18/27°C

22nd Jul 2025805 AMAQI
22nd Jul 2025806 AMAQI
22nd Jul 2025867 AMAQI
22nd Jul 2025848 AMAQI
22nd Jul 2025889 AMAQI
22nd Jul 20258610 AMAQI
22nd Jul 20258411 AMAQI
22nd Jul 20258412 PMAQI
22nd Jul 2025811 PMAQI
22nd Jul 2025862 PMAQI
22nd Jul 2025843 PMAQI
22nd Jul 2025844 PMAQI
22nd Jul 2025845 PMAQI
22nd Jul 2025826 PMAQI
22nd Jul 2025857 PMAQI
22nd Jul 2025818 PMAQI
22nd Jul 2025779 PMAQI
22nd Jul 20257510 PMAQI
22nd Jul 20257511 PMAQI
23rd Jul 20257412 AMAQI
23rd Jul 2025701 AMAQI
23rd Jul 2025622 AMAQI
23rd Jul 2025613 AMAQI
23rd Jul 2025604 AMAQI

25°C20/31°C

23rd Jul 2025615 AMAQI
23rd Jul 2025616 AMAQI
23rd Jul 2025657 AMAQI
23rd Jul 2025658 AMAQI
23rd Jul 2025669 AMAQI
23rd Jul 20256810 AMAQI
23rd Jul 20256511 AMAQI
23rd Jul 20256612 PMAQI
23rd Jul 2025661 PMAQI
23rd Jul 2025652 PMAQI
23rd Jul 2025663 PMAQI
23rd Jul 2025654 PMAQI
23rd Jul 2025665 PMAQI
23rd Jul 2025656 PMAQI
23rd Jul 2025677 PMAQI
23rd Jul 2025658 PMAQI
23rd Jul 2025649 PMAQI
23rd Jul 20256310 PMAQI
23rd Jul 20256311 PMAQI
24th Jul 20256212 AMAQI
24th Jul 2025621 AMAQI
24th Jul 2025602 AMAQI
24th Jul 2025583 AMAQI
24th Jul 2025594 AMAQI

27°C22/35°C

24th Jul 2025585 AMAQI
24th Jul 2025576 AMAQI
24th Jul 2025587 AMAQI
24th Jul 2025608 AMAQI
24th Jul 2025609 AMAQI
24th Jul 20255910 AMAQI
24th Jul 20255811 AMAQI
24th Jul 20255812 PMAQI
24th Jul 2025581 PMAQI
24th Jul 2025582 PMAQI
24th Jul 2025593 PMAQI
24th Jul 2025584 PMAQI
24th Jul 2025545 PMAQI
24th Jul 2025546 PMAQI
24th Jul 2025577 PMAQI
24th Jul 2025568 PMAQI
24th Jul 2025469 PMAQI
24th Jul 20254210 PMAQI
24th Jul 20254411 PMAQI
25th Jul 20254512 AMAQI
25th Jul 2025421 AMAQI
25th Jul 2025362 AMAQI
25th Jul 2025343 AMAQI
25th Jul 2025334 AMAQI

29°C25/34°C

25th Jul 2025335 AMAQI
25th Jul 2025306 AMAQI
25th Jul 2025327 AMAQI
25th Jul 2025328 AMAQI
25th Jul 2025319 AMAQI
25th Jul 20252910 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20252912 PMAQI
25th Jul 2025291 PMAQI
25th Jul 2025312 PMAQI
25th Jul 2025333 PMAQI
25th Jul 2025344 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025336 PMAQI
25th Jul 2025327 PMAQI
25th Jul 2025318 PMAQI
25th Jul 2025329 PMAQI
25th Jul 20253210 PMAQI
25th Jul 20253411 PMAQI
26th Jul 20254312 AMAQI
26th Jul 2025541 AMAQI
26th Jul 2025572 AMAQI
26th Jul 2025543 AMAQI
26th Jul 2025494 AMAQI

25°C22/28°C

26th Jul 2025405 AMAQI
26th Jul 2025346 AMAQI
26th Jul 2025357 AMAQI
26th Jul 2025328 AMAQI
26th Jul 2025319 AMAQI
26th Jul 20253010 AMAQI
26th Jul 20253211 AMAQI
26th Jul 20253112 PMAQI
26th Jul 2025321 PMAQI
26th Jul 2025332 PMAQI
26th Jul 2025343 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025385 PMAQI
26th Jul 2025376 PMAQI
26th Jul 2025367 PMAQI
26th Jul 2025358 PMAQI
26th Jul 2025379 PMAQI
26th Jul 20253810 PMAQI
26th Jul 20253911 PMAQI
27th Jul 20253812 AMAQI
27th Jul 2025381 AMAQI
27th Jul 2025342 AMAQI
27th Jul 2025333 AMAQI
27th Jul 2025324 AMAQI

26°C23/30°C

27th Jul 2025325 AMAQI
27th Jul 2025326 AMAQI
27th Jul 2025337 AMAQI
27th Jul 2025358 AMAQI
27th Jul 2025359 AMAQI
27th Jul 20253510 AMAQI
27th Jul 20253411 AMAQI
27th Jul 20253412 PMAQI
27th Jul 2025371 PMAQI
27th Jul 2025372 PMAQI
27th Jul 2025373 PMAQI
27th Jul 2025384 PMAQI
27th Jul 2025385 PMAQI
27th Jul 2025386 PMAQI
27th Jul 2025347 PMAQI
27th Jul 2025348 PMAQI
27th Jul 2025389 PMAQI
27th Jul 20253810 PMAQI
27th Jul 20254011 PMAQI
28th Jul 20254312 AMAQI
28th Jul 2025461 AMAQI
28th Jul 2025502 AMAQI
28th Jul 2025523 AMAQI
28th Jul 2025514 AMAQI

27°C24/33°C

28th Jul 2025495 AMAQI
28th Jul 2025486 AMAQI
28th Jul 2025497 AMAQI
28th Jul 2025508 AMAQI
28th Jul 2025509 AMAQI
28th Jul 20255010 AMAQI
28th Jul 20254611 AMAQI
28th Jul 20254612 PMAQI
28th Jul 2025461 PMAQI
28th Jul 2025442 PMAQI
28th Jul 2025463 PMAQI
28th Jul 2025464 PMAQI
28th Jul 2025465 PMAQI
28th Jul 2025466 PMAQI
28th Jul 2025457 PMAQI
28th Jul 2025438 PMAQI
28th Jul 2025449 PMAQI
28th Jul 20254210 PMAQI
28th Jul 20254211 PMAQI
29th Jul 20254612 AMAQI
29th Jul 2025441 AMAQI
29th Jul 2025422 AMAQI
29th Jul 2025443 AMAQI
29th Jul 2025464 AMAQI

28°C24/33°C

29th Jul 2025465 AMAQI
29th Jul 2025466 AMAQI
29th Jul 2025487 AMAQI
29th Jul 2025518 AMAQI
29th Jul 2025539 AMAQI
29th Jul 20255510 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20255212 PMAQI
29th Jul 2025531 PMAQI
29th Jul 2025542 PMAQI
29th Jul 2025543 PMAQI
29th Jul 2025534 PMAQI
29th Jul 2025535 PMAQI
29th Jul 2025536 PMAQI
29th Jul 2025527 PMAQI
29th Jul 2025518 PMAQI
29th Jul 2025529 PMAQI
29th Jul 20255310 PMAQI
29th Jul 20255311 PMAQI
30th Jul 20255212 AMAQI
30th Jul 2025491 AMAQI
30th Jul 2025462 AMAQI
30th Jul 2025463 AMAQI
30th Jul 2025464 AMAQI

29°C23/36°C

30th Jul 2025465 AMAQI
30th Jul 2025466 AMAQI
30th Jul 2025487 AMAQI
30th Jul 2025498 AMAQI
30th Jul 2025509 AMAQI
30th Jul 20254810 AMAQI
30th Jul 20254711 AMAQI
30th Jul 20254612 PMAQI
30th Jul 2025471 PMAQI
30th Jul 2025482 PMAQI
30th Jul 2025483 PMAQI
30th Jul 2025484 PMAQI
30th Jul 2025485 PMAQI
30th Jul 2025486 PMAQI
30th Jul 2025487 PMAQI
30th Jul 2025488 PMAQI
30th Jul 2025569 PMAQI
30th Jul 20255810 PMAQI
30th Jul 20255911 PMAQI
31st Jul 20256012 AMAQI
31st Jul 2025581 AMAQI
31st Jul 2025592 AMAQI
31st Jul 2025643 AMAQI
31st Jul 2025744 AMAQI

25°C22/26°C

31st Jul 2025825 AMAQI
31st Jul 2025986 AMAQI
31st Jul 20251127 AMAQI
31st Jul 20251208 AMAQI
31st Jul 20251399 AMAQI
31st Jul 202513910 AMAQI
31st Jul 202515811 AMAQI
31st Jul 202516512 PMAQI
31st Jul 20251561 PMAQI
31st Jul 20251622 PMAQI
31st Jul 20251193 PMAQI
31st Jul 20251234 PMAQI
31st Jul 20251465 PMAQI
31st Jul 20251476 PMAQI
31st Jul 20251247 PMAQI
31st Jul 20251378 PMAQI
31st Jul 20251289 PMAQI
31st Jul 202512610 PMAQI
31st Jul 202511711 PMAQI
1st Aug 202511712 AMAQI
1st Aug 20251021 AMAQI
1st Aug 2025992 AMAQI
1st Aug 20251053 AMAQI
1st Aug 20251044 AMAQI

23°C20/26°C

1st Aug 20251135 AMAQI
1st Aug 20251036 AMAQI
1st Aug 2025967 AMAQI
1st Aug 20251008 AMAQI
1st Aug 20251049 AMAQI
1st Aug 20259210 AMAQI
1st Aug 20258211 AMAQI
1st Aug 20258112 PMAQI
1st Aug 2025791 PMAQI
1st Aug 2025772 PMAQI
1st Aug 2025733 PMAQI
1st Aug 2025844 PMAQI
1st Aug 2025945 PMAQI
1st Aug 2025876 PMAQI
1st Aug 2025917 PMAQI
1st Aug 2025868 PMAQI
1st Aug 2025829 PMAQI
1st Aug 20258310 PMAQI
1st Aug 20259011 PMAQI
2nd Aug 20259212 AMAQI
2nd Aug 2025911 AMAQI
2nd Aug 2025962 AMAQI
2nd Aug 2025923 AMAQI
2nd Aug 2025874 AMAQI

23°C20/26°C

2nd Aug 2025935 AMAQI
2nd Aug 2025826 AMAQI
2nd Aug 2025807 AMAQI
2nd Aug 2025748 AMAQI
2nd Aug 2025839 AMAQI
2nd Aug 20257810 AMAQI
2nd Aug 20258411 AMAQI
2nd Aug 20257412 PMAQI
2nd Aug 2025701 PMAQI
2nd Aug 2025682 PMAQI
2nd Aug 2025653 PMAQI
2nd Aug 2025624 PMAQI
2nd Aug 2025645 PMAQI
2nd Aug 2025666 PMAQI
2nd Aug 2025877 PMAQI
2nd Aug 2025818 PMAQI
2nd Aug 2025779 PMAQI
2nd Aug 20257810 PMAQI
2nd Aug 20258511 PMAQI
3rd Aug 20258812 AMAQI
3rd Aug 2025901 AMAQI
3rd Aug 2025902 AMAQI
3rd Aug 2025873 AMAQI
3rd Aug 2025914 AMAQI

23°C16/28°C

3rd Aug 2025865 AMAQI
3rd Aug 2025846 AMAQI
3rd Aug 2025887 AMAQI
3rd Aug 2025888 AMAQI
3rd Aug 2025779 AMAQI
3rd Aug 20258010 AMAQI
3rd Aug 20257911 AMAQI
3rd Aug 20257612 PMAQI
3rd Aug 2025831 PMAQI
3rd Aug 2025882 PMAQI
3rd Aug 2025873 PMAQI
3rd Aug 2025874 PMAQI
3rd Aug 2025865 PMAQI
3rd Aug 2025886 PMAQI
3rd Aug 2025887 PMAQI
3rd Aug 2025898 PMAQI
3rd Aug 2025909 PMAQI
3rd Aug 202510010 PMAQI
3rd Aug 202511311 PMAQI
4th Aug 202512612 AMAQI
4th Aug 20251221 AMAQI
4th Aug 20251212 AMAQI
4th Aug 20251203 AMAQI
4th Aug 20251234 AMAQI

23°C19/27°C

4th Aug 20251095 AMAQI
4th Aug 20251016 AMAQI
4th Aug 20251087 AMAQI
4th Aug 20251178 AMAQI
4th Aug 2025949 AMAQI
4th Aug 20257910 AMAQI
4th Aug 20257311 AMAQI
4th Aug 20256812 PMAQI
4th Aug 2025651 PMAQI
4th Aug 2025662 PMAQI
4th Aug 2025703 PMAQI
4th Aug 2025664 PMAQI
4th Aug 2025645 PMAQI
4th Aug 2025646 PMAQI
4th Aug 2025897 PMAQI
4th Aug 2025768 PMAQI
4th Aug 2025629 PMAQI
4th Aug 20256210 PMAQI
4th Aug 20256511 PMAQI
5th Aug 20256612 AMAQI
5th Aug 2025701 AMAQI
5th Aug 2025752 AMAQI
5th Aug 2025743 AMAQI
5th Aug 2025764 AMAQI

23°C19/27°C

5th Aug 2025765 AMAQI
5th Aug 2025776 AMAQI
5th Aug 2025807 AMAQI
5th Aug 2025858 AMAQI
5th Aug 2025929 AMAQI
5th Aug 20259710 AMAQI
5th Aug 202510111 AMAQI
5th Aug 202510012 PMAQI
5th Aug 2025981 PMAQI
5th Aug 2025842 PMAQI
5th Aug 2025833 PMAQI
5th Aug 2025864 PMAQI
5th Aug 2025865 PMAQI
5th Aug 2025936 PMAQI
5th Aug 2025787 PMAQI
5th Aug 2025948 PMAQI
5th Aug 20251139 PMAQI
5th Aug 202511210 PMAQI
5th Aug 202511411 PMAQI
6th Aug 202511612 AMAQI
6th Aug 20251171 AMAQI
6th Aug 20251112 AMAQI
6th Aug 20251003 AMAQI
6th Aug 20251054 AMAQI

24°C21/27°C

6th Aug 20251005 AMAQI
6th Aug 2025966 AMAQI
6th Aug 20251007 AMAQI
6th Aug 2025978 AMAQI
6th Aug 2025989 AMAQI
6th Aug 202510510 AMAQI
6th Aug 20259411 AMAQI
6th Aug 20258912 PMAQI
6th Aug 2025871 PMAQI
6th Aug 2025842 PMAQI
6th Aug 2025823 PMAQI
6th Aug 2025824 PMAQI
6th Aug 2025815 PMAQI
6th Aug 2025786 PMAQI
6th Aug 20251067 PMAQI
6th Aug 2025878 PMAQI
6th Aug 2025739 PMAQI
6th Aug 20257310 PMAQI
6th Aug 20257411 PMAQI
7th Aug 20257712 AMAQI
7th Aug 2025811 AMAQI
7th Aug 2025782 AMAQI
7th Aug 2025783 AMAQI
7th Aug 2025794 AMAQI

25°C21/31°C

7th Aug 2025775 AMAQI
7th Aug 2025746 AMAQI
7th Aug 2025767 AMAQI
7th Aug 2025748 AMAQI
7th Aug 2025719 AMAQI
7th Aug 20256510 AMAQI
7th Aug 20256311 AMAQI
7th Aug 20256112 PMAQI
7th Aug 2025601 PMAQI
7th Aug 2025632 PMAQI
7th Aug 2025643 PMAQI
7th Aug 2025654 PMAQI
7th Aug 2025655 PMAQI
7th Aug 2025656 PMAQI
7th Aug 2025697 PMAQI
7th Aug 2025688 PMAQI
7th Aug 2025649 PMAQI
7th Aug 20256410 PMAQI
7th Aug 20256411 PMAQI
8th Aug 20256412 AMAQI
8th Aug 2025621 AMAQI
8th Aug 2025602 AMAQI
8th Aug 2025583 AMAQI
8th Aug 2025584 AMAQI

27°C21/32°C

8th Aug 2025585 AMAQI
8th Aug 2025586 AMAQI
8th Aug 2025587 AMAQI
8th Aug 2025588 AMAQI
8th Aug 2025589 AMAQI
8th Aug 20255910 AMAQI
8th Aug 20256111 AMAQI
8th Aug 20256012 PMAQI
8th Aug 2025601 PMAQI
8th Aug 2025592 PMAQI
8th Aug 2025603 PMAQI
8th Aug 2025604 PMAQI
8th Aug 2025605 PMAQI
8th Aug 2025596 PMAQI
8th Aug 2025607 PMAQI
8th Aug 2025608 PMAQI
8th Aug 2025609 PMAQI
8th Aug 20256010 PMAQI
8th Aug 20255811 PMAQI
9th Aug 20255912 AMAQI
9th Aug 2025601 AMAQI
9th Aug 2025582 AMAQI
9th Aug 2025583 AMAQI
9th Aug 2025564 AMAQI

29°C24/35°C

9th Aug 2025585 AMAQI
9th Aug 2025596 AMAQI
9th Aug 2025587 AMAQI
9th Aug 2025598 AMAQI
9th Aug 2025609 AMAQI
9th Aug 20255910 AMAQI
9th Aug 20256011 AMAQI
9th Aug 20255912 PMAQI
9th Aug 2025591 PMAQI
9th Aug 2025582 PMAQI
9th Aug 2025583 PMAQI
9th Aug 2025594 PMAQI
9th Aug 2025585 PMAQI
9th Aug 2025586 PMAQI
9th Aug 2025577 PMAQI
9th Aug 2025588 PMAQI
9th Aug 2025579 PMAQI
9th Aug 20255510 PMAQI
9th Aug 20255511 PMAQI
10th Aug 20255412 AMAQI
10th Aug 2025561 AMAQI
10th Aug 2025542 AMAQI
10th Aug 2025523 AMAQI
10th Aug 2025524 AMAQI

30°C24/36°C

10th Aug 2025535 AMAQI
10th Aug 2025516 AMAQI
10th Aug 2025507 AMAQI
10th Aug 2025508 AMAQI
10th Aug 2025529 AMAQI
10th Aug 20255310 AMAQI
10th Aug 20255211 AMAQI
10th Aug 20255212 PMAQI
10th Aug 2025521 PMAQI
10th Aug 2025522 PMAQI
10th Aug 2025523 PMAQI
10th Aug 2025524 PMAQI
10th Aug 2025525 PMAQI
10th Aug 2025526 PMAQI
10th Aug 2025527 PMAQI
10th Aug 2025538 PMAQI
10th Aug 2025529 PMAQI
10th Aug 20255210 PMAQI
10th Aug 20255211 PMAQI
11th Aug 20255212 AMAQI
11th Aug 2025501 AMAQI
11th Aug 2025522 AMAQI
11th Aug 2025513 AMAQI
11th Aug 2025524 AMAQI

29°C26/36°C

11th Aug 2025505 AMAQI
11th Aug 2025526 AMAQI
11th Aug 2025527 AMAQI
11th Aug 2025528 AMAQI
11th Aug 2025529 AMAQI
11th Aug 20255210 AMAQI
11th Aug 20255211 AMAQI
11th Aug 20255212 PMAQI
11th Aug 2025471 PMAQI
11th Aug 2025482 PMAQI
11th Aug 2025443 PMAQI
11th Aug 2025424 PMAQI
11th Aug 2025435 PMAQI
11th Aug 2025416 PMAQI
11th Aug 2025527 PMAQI
11th Aug 2025468 PMAQI
11th Aug 2025439 PMAQI
11th Aug 20254410 PMAQI
11th Aug 20254111 PMAQI
12th Aug 20253912 AMAQI
12th Aug 2025411 AMAQI
12th Aug 2025402 AMAQI
12th Aug 2025403 AMAQI
12th Aug 2025404 AMAQI

26°C24/29°C

12th Aug 2025445 AMAQI
12th Aug 2025486 AMAQI
12th Aug 2025487 AMAQI
12th Aug 2025478 AMAQI
12th Aug 2025409 AMAQI
12th Aug 20253610 AMAQI
12th Aug 20253611 AMAQI
12th Aug 20254112 PMAQI
12th Aug 2025491 PMAQI
12th Aug 2025532 PMAQI
12th Aug 2025543 PMAQI
12th Aug 2025524 PMAQI
12th Aug 2025475 PMAQI
12th Aug 2025416 PMAQI
12th Aug 2025427 PMAQI
12th Aug 2025408 PMAQI
12th Aug 2025379 PMAQI
12th Aug 20253710 PMAQI
12th Aug 20253711 PMAQI
13th Aug 20253612 AMAQI
13th Aug 2025371 AMAQI
13th Aug 2025362 AMAQI
13th Aug 2025373 AMAQI
13th Aug 2025404 AMAQI

28°C24/35°C

13th Aug 2025415 AMAQI
13th Aug 2025486 AMAQI
13th Aug 2025547 AMAQI
13th Aug 2025578 AMAQI
13th Aug 2025609 AMAQI
13th Aug 20255910 AMAQI
13th Aug 20256011 AMAQI
13th Aug 20256012 PMAQI
13th Aug 2025621 PMAQI
13th Aug 2025632 PMAQI
13th Aug 2025643 PMAQI
13th Aug 2025624 PMAQI
13th Aug 2025625 PMAQI
13th Aug 2025626 PMAQI
13th Aug 2025567 PMAQI
13th Aug 2025588 PMAQI
13th Aug 2025589 PMAQI
13th Aug 20255610 PMAQI
13th Aug 20255611 PMAQI
14th Aug 20255412 AMAQI
14th Aug 2025541 AMAQI
14th Aug 2025542 AMAQI
14th Aug 2025553 AMAQI
14th Aug 2025554 AMAQI

25°C22/26°C

14th Aug 2025555 AMAQI
5 AM
14th Aug 2025566 AMAQI
14th Aug 2025567 AMAQI
12 PM
8 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 8 PM

60AQI

16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM

60AQI

16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 60), while the lowest AQI was between 5 AM to 8 PM (Avg. 60).
Night time
Avg. Highest Time
12 AM - 11 PM

60AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM

60AQI

8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 60), while the lowest AQI was between 12 AM to 11 PM (Avg. 60).

2025 Days Vs Air Quality

Portage Park, Chicago, Illinois, United States

2025

66%

93

32%

45

1%

2

Total number of days with different AQI categories in last 226 days in 2025 (139 days remaining)

Good
93 Days
Moderate
45 Days
Poor
2 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 66%

Health Risk Level:

Moderate

In 2025, 66% of 226 days were within WHO’s safe air quality limits, and 34% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.

Annual Air Quality Insights

Portage Park, Chicago, Illinois, United States

AQI levels in 2025

AQI
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.

1st March 2025
54AQI
2nd March 2025
47AQI
3rd March 2025
35AQI
4th March 2025
32AQI
5th March 2025
19AQI
1st April 2025
21AQI
2nd April 2025
40AQI
3rd April 2025
28AQI
4th April 2025
30AQI
5th April 2025
25AQI
6th April 2025
25AQI
7th April 2025
27AQI
8th April 2025
19AQI
9th April 2025
38AQI
10th April 2025
49AQI
11th April 2025
47AQI
12th April 2025
53AQI
13th April 2025
47AQI
14th April 2025
35AQI
15th April 2025
20AQI
16th April 2025
22AQI
17th April 2025
38AQI
18th April 2025
53AQI
19th April 2025
42AQI
20th April 2025
40AQI
21st April 2025
21AQI
22nd April 2025
34AQI
23rd April 2025
30AQI
24th April 2025
53AQI
25th April 2025
26AQI
26th April 2025
19AQI
27th April 2025
31AQI
28th April 2025
40AQI
29th April 2025
34AQI
30th April 2025
20AQI
1st May 2025
31AQI
2nd May 2025
27AQI
3rd May 2025
16AQI
4th May 2025
16AQI
5th May 2025
21AQI
6th May 2025
37AQI
7th May 2025
41AQI
8th May 2025
18AQI
9th May 2025
22AQI
10th May 2025
32AQI
11th May 2025
23AQI
12th May 2025
37AQI
13th May 2025
35AQI
14th May 2025
33AQI
15th May 2025
46AQI
16th May 2025
36AQI
17th May 2025
22AQI
18th May 2025
20AQI
19th May 2025
18AQI
20th May 2025
25AQI
21st May 2025
18AQI
22nd May 2025
15AQI
23rd May 2025
19AQI
24th May 2025
18AQI
25th May 2025
14AQI
26th May 2025
21AQI
27th May 2025
26AQI
28th May 2025
30AQI
29th May 2025
40AQI
30th May 2025
46AQI
31st May 2025
40AQI
1st June 2025
37AQI
2nd June 2025
43AQI
3rd June 2025
57AQI
4th June 2025
57AQI
5th June 2025
101AQI
6th June 2025
83AQI
7th June 2025
83AQI
8th June 2025
78AQI
9th June 2025
71AQI
10th June 2025
62AQI
11th June 2025
74AQI
12th June 2025
80AQI
13th June 2025
76AQI
14th June 2025
63AQI
15th June 2025
51AQI
16th June 2025
56AQI
17th June 2025
52AQI
18th June 2025
39AQI
19th June 2025
33AQI
20th June 2025
44AQI
21st June 2025
43AQI
22nd June 2025
47AQI
23rd June 2025
57AQI
24th June 2025
43AQI
25th June 2025
32AQI
26th June 2025
49AQI
27th June 2025
37AQI
28th June 2025
23AQI
29th June 2025
37AQI
30th June 2025
34AQI
1st July 2025
34AQI
2nd July 2025
55AQI
3rd July 2025
54AQI
4th July 2025
57AQI
5th July 2025
71AQI
6th July 2025
52AQI
7th July 2025
54AQI
8th July 2025
66AQI
9th July 2025
52AQI
10th July 2025
44AQI
11th July 2025
46AQI
12th July 2025
29AQI
13th July 2025
59AQI
14th July 2025
72AQI
15th July 2025
79AQI
16th July 2025
50AQI
17th July 2025
27AQI
18th July 2025
29AQI
19th July 2025
40AQI
20th July 2025
29AQI
21st July 2025
75AQI
22nd July 2025
81AQI
23rd July 2025
65AQI
24th July 2025
56AQI
25th July 2025
33AQI
26th July 2025
39AQI
27th July 2025
35AQI
28th July 2025
46AQI
29th July 2025
50AQI
30th July 2025
49AQI
31st July 2025
114AQI
1st August 2025
93AQI
2nd August 2025
81AQI
3rd August 2025
88AQI
4th August 2025
89AQI
5th August 2025
88AQI
6th August 2025
94AQI
7th August 2025
70AQI
8th August 2025
60AQI
9th August 2025
58AQI
10th August 2025
53AQI
11th August 2025
48AQI
12th August 2025
42AQI
13th August 2025
51AQI

37AQI

34AQI

27AQI

55AQI

53AQI

70AQI


No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202545AQI

4
1
27
3
31
14
15
1
15
15
1
2
11
93
45
2

Highest AQI recorded in

August

70AQI


Lowest AQI recorded in

May

27AQI


Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded
2025(Avg.)
45AQI
Least Polluted Year Recorded
2025(Avg.)
45AQI


Portage Park's annual 2025 AQI (45) shows an average percentage change of NaN% (improved AQI) compared to previous years: .