East St Louis, 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
East St Louis, Illinois, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
107AQILowest AQI recorded on
7th Aug 2024
24AQISame Day Analysis (10th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 49 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Aug - 11th Aug 2025
East St Louis, Illinois, United States
AQI
Day
Night
.
5 AM10th Aug 2025
8 PM
4 AM11th Aug 2025
Day time
Avg. Highest Time
7AM10th Aug
52AQI
Avg. Lowest Time
6PM10th Aug
46AQI
Night time
Avg. Highest Time
5AM10th Aug
48AQI
Avg. Lowest Time
4AM11th Aug
34AQI
In the last 24 hours,
East St Louis's AQI reached its highest point of 52 at 7 AM during the Day, while the lowest point, 34, was recorded at 4 AM during the Night between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
East St Louis, Illinois, United States
JulAug
12th - 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 - 10th10th - 11th11th
Day
Night
12th Jul 2025275 AMAQI
12th Jul 2025276 AMAQI
12th Jul 2025307 AMAQI
12th Jul 2025288 AMAQI
12th Jul 2025299 AMAQI
12th Jul 20253210 AMAQI
12th Jul 20253611 AMAQI
12th Jul 20253812 PMAQI
12th Jul 2025381 PMAQI
12th Jul 2025382 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025364 PMAQI
12th Jul 2025355 PMAQI
12th Jul 2025346 PMAQI
12th Jul 2025357 PMAQI
12th Jul 2025368 PMAQI
12th Jul 2025339 PMAQI
12th Jul 20253410 PMAQI
12th Jul 20253611 PMAQI
13th Jul 20253812 AMAQI
13th Jul 2025421 AMAQI
13th Jul 2025412 AMAQI
13th Jul 2025423 AMAQI
13th Jul 2025414 AMAQI
28°C24/31°C
13th Jul 2025345 AMAQI
13th Jul 2025346 AMAQI
13th Jul 2025367 AMAQI
13th Jul 2025348 AMAQI
13th Jul 2025349 AMAQI
13th Jul 20253410 AMAQI
13th Jul 20253411 AMAQI
13th Jul 20253812 PMAQI
13th Jul 2025381 PMAQI
13th Jul 2025362 PMAQI
13th Jul 2025363 PMAQI
13th Jul 2025364 PMAQI
13th Jul 2025345 PMAQI
13th Jul 2025346 PMAQI
13th Jul 2025367 PMAQI
13th Jul 2025368 PMAQI
13th Jul 2025329 PMAQI
13th Jul 20253210 PMAQI
13th Jul 20253411 PMAQI
14th Jul 20253412 AMAQI
14th Jul 2025351 AMAQI
14th Jul 2025252 AMAQI
14th Jul 2025213 AMAQI
14th Jul 2025224 AMAQI
25°C21/30°C
14th Jul 2025235 AMAQI
14th Jul 2025286 AMAQI
14th Jul 2025327 AMAQI
14th Jul 2025308 AMAQI
14th Jul 2025309 AMAQI
14th Jul 20253010 AMAQI
14th Jul 20253411 AMAQI
14th Jul 20253612 PMAQI
14th Jul 2025371 PMAQI
14th Jul 2025362 PMAQI
14th Jul 2025363 PMAQI
14th Jul 2025364 PMAQI
14th Jul 2025365 PMAQI
14th Jul 2025366 PMAQI
14th Jul 2025337 PMAQI
14th Jul 2025338 PMAQI
14th Jul 2025359 PMAQI
14th Jul 20253710 PMAQI
14th Jul 20253611 PMAQI
15th Jul 20253612 AMAQI
15th Jul 2025391 AMAQI
15th Jul 2025452 AMAQI
15th Jul 2025433 AMAQI
15th Jul 2025424 AMAQI
25°C23/29°C
15th Jul 2025435 AMAQI
15th Jul 2025456 AMAQI
15th Jul 2025437 AMAQI
15th Jul 2025428 AMAQI
15th Jul 2025429 AMAQI
15th Jul 20253810 AMAQI
15th Jul 20254011 AMAQI
15th Jul 20254012 PMAQI
15th Jul 2025421 PMAQI
15th Jul 2025402 PMAQI
15th Jul 2025403 PMAQI
15th Jul 2025404 PMAQI
15th Jul 2025425 PMAQI
15th Jul 2025406 PMAQI
15th Jul 2025417 PMAQI
15th Jul 2025428 PMAQI
15th Jul 2025379 PMAQI
15th Jul 20253810 PMAQI
15th Jul 20253911 PMAQI
16th Jul 20253912 AMAQI
16th Jul 2025381 AMAQI
16th Jul 2025322 AMAQI
16th Jul 2025343 AMAQI
16th Jul 2025324 AMAQI
27°C23/31°C
16th Jul 2025315 AMAQI
16th Jul 2025286 AMAQI
16th Jul 2025307 AMAQI
16th Jul 2025328 AMAQI
16th Jul 2025349 AMAQI
16th Jul 20253810 AMAQI
16th Jul 20254411 AMAQI
16th Jul 20254712 PMAQI
16th Jul 2025471 PMAQI
16th Jul 2025442 PMAQI
16th Jul 2025443 PMAQI
16th Jul 2025444 PMAQI
16th Jul 2025425 PMAQI
16th Jul 2025386 PMAQI
16th Jul 2025367 PMAQI
16th Jul 2025358 PMAQI
16th Jul 2025339 PMAQI
16th Jul 20253410 PMAQI
16th Jul 20253411 PMAQI
17th Jul 20253412 AMAQI
17th Jul 2025341 AMAQI
17th Jul 2025342 AMAQI
17th Jul 2025333 AMAQI
17th Jul 2025344 AMAQI
29°C22/38°C
17th Jul 2025335 AMAQI
17th Jul 2025266 AMAQI
17th Jul 2025287 AMAQI
17th Jul 2025328 AMAQI
17th Jul 2025329 AMAQI
17th Jul 20253710 AMAQI
17th Jul 20253711 AMAQI
17th Jul 20253412 PMAQI
17th Jul 2025391 PMAQI
17th Jul 2025442 PMAQI
17th Jul 2025423 PMAQI
17th Jul 2025394 PMAQI
17th Jul 2025355 PMAQI
17th Jul 2025336 PMAQI
17th Jul 2025337 PMAQI
17th Jul 2025348 PMAQI
17th Jul 2025319 PMAQI
17th Jul 20253210 PMAQI
17th Jul 20253211 PMAQI
18th Jul 20253212 AMAQI
18th Jul 2025321 AMAQI
18th Jul 2025232 AMAQI
18th Jul 2025253 AMAQI
18th Jul 2025264 AMAQI
27°C24/33°C
18th Jul 2025265 AMAQI
18th Jul 2025276 AMAQI
18th Jul 2025267 AMAQI
18th Jul 2025258 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252810 AMAQI
18th Jul 20252911 AMAQI
18th Jul 20253012 PMAQI
18th Jul 2025321 PMAQI
18th Jul 2025332 PMAQI
18th Jul 2025343 PMAQI
18th Jul 2025364 PMAQI
18th Jul 2025385 PMAQI
18th Jul 2025396 PMAQI
18th Jul 2025307 PMAQI
18th Jul 2025318 PMAQI
18th Jul 2025409 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254611 PMAQI
19th Jul 20255112 AMAQI
19th Jul 2025511 AMAQI
19th Jul 2025592 AMAQI
19th Jul 2025583 AMAQI
19th Jul 2025564 AMAQI
26°C24/31°C
19th Jul 2025525 AMAQI
19th Jul 2025476 AMAQI
19th Jul 2025487 AMAQI
19th Jul 2025458 AMAQI
19th Jul 2025449 AMAQI
19th Jul 20254410 AMAQI
19th Jul 20254811 AMAQI
19th Jul 20255212 PMAQI
19th Jul 2025541 PMAQI
19th Jul 2025552 PMAQI
19th Jul 2025553 PMAQI
19th Jul 2025514 PMAQI
19th Jul 2025485 PMAQI
19th Jul 2025496 PMAQI
19th Jul 2025517 PMAQI
19th Jul 2025528 PMAQI
19th Jul 2025539 PMAQI
19th Jul 20255310 PMAQI
19th Jul 20255211 PMAQI
20th Jul 20255212 AMAQI
20th Jul 2025521 AMAQI
20th Jul 2025532 AMAQI
20th Jul 2025543 AMAQI
20th Jul 2025544 AMAQI
27°C23/35°C
20th Jul 2025535 AMAQI
20th Jul 2025536 AMAQI
20th Jul 2025537 AMAQI
20th Jul 2025548 AMAQI
20th Jul 2025549 AMAQI
20th Jul 20255510 AMAQI
20th Jul 20255511 AMAQI
20th Jul 20255412 PMAQI
20th Jul 2025541 PMAQI
20th Jul 2025532 PMAQI
20th Jul 2025543 PMAQI
20th Jul 2025544 PMAQI
20th Jul 2025545 PMAQI
20th Jul 2025536 PMAQI
20th Jul 2025537 PMAQI
20th Jul 2025548 PMAQI
20th Jul 2025529 PMAQI
20th Jul 20255210 PMAQI
20th Jul 20255211 PMAQI
21st Jul 20255212 AMAQI
21st Jul 2025501 AMAQI
21st Jul 2025372 AMAQI
21st Jul 2025253 AMAQI
21st Jul 2025244 AMAQI
31°C24/38°C
21st Jul 2025215 AMAQI
21st Jul 2025206 AMAQI
21st Jul 2025237 AMAQI
21st Jul 2025238 AMAQI
21st Jul 2025259 AMAQI
21st Jul 20252410 AMAQI
21st Jul 20252611 AMAQI
21st Jul 20252712 PMAQI
21st Jul 2025281 PMAQI
21st Jul 2025302 PMAQI
21st Jul 2025303 PMAQI
21st Jul 2025304 PMAQI
21st Jul 2025315 PMAQI
21st Jul 2025326 PMAQI
21st Jul 2025297 PMAQI
21st Jul 2025308 PMAQI
21st Jul 2025349 PMAQI
21st Jul 20253510 PMAQI
21st Jul 20253411 PMAQI
22nd Jul 20253512 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025372 AMAQI
22nd Jul 2025373 AMAQI
22nd Jul 2025374 AMAQI
26°C23/31°C
22nd Jul 2025415 AMAQI
22nd Jul 2025456 AMAQI
22nd Jul 2025447 AMAQI
22nd Jul 2025438 AMAQI
22nd Jul 2025439 AMAQI
22nd Jul 20254410 AMAQI
22nd Jul 20254611 AMAQI
22nd Jul 20254612 PMAQI
22nd Jul 2025441 PMAQI
22nd Jul 2025502 PMAQI
22nd Jul 2025523 PMAQI
22nd Jul 2025524 PMAQI
22nd Jul 2025535 PMAQI
22nd Jul 2025536 PMAQI
22nd Jul 2025477 PMAQI
22nd Jul 2025478 PMAQI
22nd Jul 2025499 PMAQI
22nd Jul 20255110 PMAQI
22nd Jul 20255111 PMAQI
23rd Jul 20255112 AMAQI
23rd Jul 2025521 AMAQI
23rd Jul 2025522 AMAQI
23rd Jul 2025503 AMAQI
23rd Jul 2025524 AMAQI
28°C23/35°C
23rd Jul 2025525 AMAQI
23rd Jul 2025546 AMAQI
23rd Jul 2025527 AMAQI
23rd Jul 2025538 AMAQI
23rd Jul 2025559 AMAQI
23rd Jul 20255610 AMAQI
23rd Jul 20255811 AMAQI
23rd Jul 20256212 PMAQI
23rd Jul 2025621 PMAQI
23rd Jul 2025602 PMAQI
23rd Jul 2025583 PMAQI
23rd Jul 2025584 PMAQI
23rd Jul 2025585 PMAQI
23rd Jul 2025576 PMAQI
23rd Jul 2025577 PMAQI
23rd Jul 2025568 PMAQI
23rd Jul 2025579 PMAQI
23rd Jul 20255610 PMAQI
23rd Jul 20255711 PMAQI
24th Jul 20255812 AMAQI
24th Jul 2025571 AMAQI
24th Jul 2025572 AMAQI
24th Jul 2025563 AMAQI
24th Jul 2025584 AMAQI
30°C25/38°C
24th Jul 2025595 AMAQI
24th Jul 2025586 AMAQI
24th Jul 2025607 AMAQI
24th Jul 2025588 AMAQI
24th Jul 2025599 AMAQI
24th Jul 20255810 AMAQI
24th Jul 20255911 AMAQI
24th Jul 20255812 PMAQI
24th Jul 2025581 PMAQI
24th Jul 2025572 PMAQI
24th Jul 2025573 PMAQI
24th Jul 2025564 PMAQI
24th Jul 2025575 PMAQI
24th Jul 2025566 PMAQI
24th Jul 2025587 PMAQI
24th Jul 2025588 PMAQI
24th Jul 2025569 PMAQI
24th Jul 20255610 PMAQI
24th Jul 20255611 PMAQI
25th Jul 20255612 AMAQI
25th Jul 2025561 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025373 AMAQI
25th Jul 2025364 AMAQI
30°C24/37°C
25th Jul 2025375 AMAQI
25th Jul 2025346 AMAQI
25th Jul 2025337 AMAQI
25th Jul 2025318 AMAQI
25th Jul 2025349 AMAQI
25th Jul 20253810 AMAQI
25th Jul 20254811 AMAQI
25th Jul 20255412 PMAQI
25th Jul 2025551 PMAQI
25th Jul 2025552 PMAQI
25th Jul 2025533 PMAQI
25th Jul 2025554 PMAQI
25th Jul 2025545 PMAQI
25th Jul 2025536 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025528 PMAQI
25th Jul 2025529 PMAQI
25th Jul 20255210 PMAQI
25th Jul 20255311 PMAQI
26th Jul 20255312 AMAQI
26th Jul 2025521 AMAQI
26th Jul 2025532 AMAQI
26th Jul 2025533 AMAQI
26th Jul 2025524 AMAQI
30°C25/36°C
26th Jul 2025525 AMAQI
26th Jul 2025516 AMAQI
26th Jul 2025527 AMAQI
26th Jul 2025518 AMAQI
26th Jul 2025519 AMAQI
26th Jul 20255210 AMAQI
26th Jul 20255011 AMAQI
26th Jul 20255012 PMAQI
26th Jul 2025481 PMAQI
26th Jul 2025452 PMAQI
26th Jul 2025493 PMAQI
26th Jul 2025484 PMAQI
26th Jul 2025475 PMAQI
26th Jul 2025466 PMAQI
26th Jul 2025507 PMAQI
26th Jul 2025518 PMAQI
26th Jul 2025449 PMAQI
26th Jul 20254510 PMAQI
26th Jul 20254511 PMAQI
27th Jul 20254412 AMAQI
27th Jul 2025441 AMAQI
27th Jul 2025342 AMAQI
27th Jul 2025283 AMAQI
27th Jul 2025204 AMAQI
30°C25/37°C
27th Jul 2025175 AMAQI
27th Jul 2025176 AMAQI
27th Jul 2025197 AMAQI
27th Jul 2025218 AMAQI
27th Jul 2025229 AMAQI
27th Jul 20252210 AMAQI
27th Jul 20252411 AMAQI
27th Jul 20252412 PMAQI
27th Jul 2025251 PMAQI
27th Jul 2025282 PMAQI
27th Jul 2025293 PMAQI
27th Jul 2025314 PMAQI
27th Jul 2025325 PMAQI
27th Jul 2025336 PMAQI
27th Jul 2025327 PMAQI
27th Jul 2025318 PMAQI
27th Jul 2025329 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253211 PMAQI
28th Jul 20253212 AMAQI
28th Jul 2025301 AMAQI
28th Jul 2025302 AMAQI
28th Jul 2025303 AMAQI
28th Jul 2025304 AMAQI
30°C25/36°C
28th Jul 2025325 AMAQI
28th Jul 2025326 AMAQI
28th Jul 2025347 AMAQI
28th Jul 2025368 AMAQI
28th Jul 2025369 AMAQI
28th Jul 20254010 AMAQI
28th Jul 20254111 AMAQI
28th Jul 20254312 PMAQI
28th Jul 2025451 PMAQI
28th Jul 2025462 PMAQI
28th Jul 2025433 PMAQI
28th Jul 2025444 PMAQI
28th Jul 2025435 PMAQI
28th Jul 2025436 PMAQI
28th Jul 2025387 PMAQI
28th Jul 2025398 PMAQI
28th Jul 2025409 PMAQI
28th Jul 20254210 PMAQI
28th Jul 20254411 PMAQI
29th Jul 20254712 AMAQI
29th Jul 2025491 AMAQI
29th Jul 2025582 AMAQI
29th Jul 2025563 AMAQI
29th Jul 2025544 AMAQI
31°C26/37°C
29th Jul 2025555 AMAQI
29th Jul 2025556 AMAQI
29th Jul 2025547 AMAQI
29th Jul 2025558 AMAQI
29th Jul 2025559 AMAQI
29th Jul 20255210 AMAQI
29th Jul 20254611 AMAQI
29th Jul 20254512 PMAQI
29th Jul 2025451 PMAQI
29th Jul 2025492 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025524 PMAQI
29th Jul 2025525 PMAQI
29th Jul 2025536 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025538 PMAQI
29th Jul 2025529 PMAQI
29th Jul 20255010 PMAQI
29th Jul 20255111 PMAQI
30th Jul 20255212 AMAQI
30th Jul 2025531 AMAQI
30th Jul 2025442 AMAQI
30th Jul 2025443 AMAQI
30th Jul 2025504 AMAQI
32°C27/39°C
30th Jul 2025525 AMAQI
30th Jul 2025526 AMAQI
30th Jul 2025537 AMAQI
30th Jul 2025548 AMAQI
30th Jul 2025549 AMAQI
30th Jul 20255410 AMAQI
30th Jul 20255311 AMAQI
30th Jul 20255212 PMAQI
30th Jul 2025521 PMAQI
30th Jul 2025522 PMAQI
30th Jul 2025523 PMAQI
30th Jul 2025524 PMAQI
30th Jul 2025525 PMAQI
30th Jul 2025526 PMAQI
30th Jul 2025527 PMAQI
30th Jul 2025528 PMAQI
30th Jul 2025509 PMAQI
30th Jul 20254810 PMAQI
30th Jul 20255011 PMAQI
31st Jul 20255012 AMAQI
31st Jul 2025461 AMAQI
31st Jul 2025322 AMAQI
31st Jul 2025303 AMAQI
31st Jul 2025284 AMAQI
30°C25/36°C
31st Jul 2025245 AMAQI
31st Jul 2025266 AMAQI
31st Jul 2025327 AMAQI
31st Jul 2025358 AMAQI
31st Jul 2025339 AMAQI
31st Jul 20253310 AMAQI
31st Jul 20253411 AMAQI
31st Jul 20253512 PMAQI
31st Jul 2025331 PMAQI
31st Jul 2025332 PMAQI
31st Jul 2025433 PMAQI
31st Jul 2025514 PMAQI
31st Jul 2025515 PMAQI
31st Jul 2025506 PMAQI
31st Jul 2025327 PMAQI
31st Jul 2025508 PMAQI
31st Jul 2025809 PMAQI
31st Jul 20259410 PMAQI
31st Jul 202510711 PMAQI
1st Aug 202511012 AMAQI
1st Aug 20251121 AMAQI
1st Aug 20251022 AMAQI
1st Aug 2025893 AMAQI
1st Aug 20251104 AMAQI
25°C22/28°C
1st Aug 20251285 AMAQI
1st Aug 20251326 AMAQI
1st Aug 20251327 AMAQI
1st Aug 20251368 AMAQI
1st Aug 20251389 AMAQI
1st Aug 202512910 AMAQI
1st Aug 202512311 AMAQI
1st Aug 202511412 PMAQI
1st Aug 2025991 PMAQI
1st Aug 2025922 PMAQI
1st Aug 2025903 PMAQI
1st Aug 2025884 PMAQI
1st Aug 2025905 PMAQI
1st Aug 2025906 PMAQI
1st Aug 20251117 PMAQI
1st Aug 20251038 PMAQI
1st Aug 2025919 PMAQI
1st Aug 20258910 PMAQI
1st Aug 20259211 PMAQI
2nd Aug 20259212 AMAQI
2nd Aug 2025901 AMAQI
2nd Aug 2025902 AMAQI
2nd Aug 2025923 AMAQI
2nd Aug 2025944 AMAQI
24°C18/30°C
2nd Aug 2025915 AMAQI
2nd Aug 2025966 AMAQI
2nd Aug 2025937 AMAQI
2nd Aug 2025948 AMAQI
2nd Aug 2025949 AMAQI
2nd Aug 20259210 AMAQI
2nd Aug 20258811 AMAQI
2nd Aug 20257512 PMAQI
2nd Aug 2025661 PMAQI
2nd Aug 2025622 PMAQI
2nd Aug 2025583 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025555 PMAQI
2nd Aug 2025546 PMAQI
2nd Aug 2025817 PMAQI
2nd Aug 2025768 PMAQI
2nd Aug 2025539 PMAQI
2nd Aug 20255210 PMAQI
2nd Aug 20255411 PMAQI
3rd Aug 20255212 AMAQI
3rd Aug 2025481 AMAQI
3rd Aug 2025502 AMAQI
3rd Aug 2025493 AMAQI
3rd Aug 2025484 AMAQI
22°C16/29°C
3rd Aug 2025465 AMAQI
3rd Aug 2025486 AMAQI
3rd Aug 2025447 AMAQI
3rd Aug 2025448 AMAQI
3rd Aug 2025449 AMAQI
3rd Aug 20254510 AMAQI
3rd Aug 20254211 AMAQI
3rd Aug 20253912 PMAQI
3rd Aug 2025391 PMAQI
3rd Aug 2025402 PMAQI
3rd Aug 2025413 PMAQI
3rd Aug 2025404 PMAQI
3rd Aug 2025405 PMAQI
3rd Aug 2025386 PMAQI
3rd Aug 2025477 PMAQI
3rd Aug 2025408 PMAQI
3rd Aug 2025369 PMAQI
3rd Aug 20254010 PMAQI
3rd Aug 20253911 PMAQI
4th Aug 20254212 AMAQI
4th Aug 2025401 AMAQI
4th Aug 2025402 AMAQI
4th Aug 2025443 AMAQI
4th Aug 2025364 AMAQI
22°C15/28°C
4th Aug 2025355 AMAQI
4th Aug 2025366 AMAQI
4th Aug 2025307 AMAQI
4th Aug 2025348 AMAQI
4th Aug 2025389 AMAQI
4th Aug 20254410 AMAQI
4th Aug 20254711 AMAQI
4th Aug 20254812 PMAQI
4th Aug 2025501 PMAQI
4th Aug 2025532 PMAQI
4th Aug 2025483 PMAQI
4th Aug 2025514 PMAQI
4th Aug 2025475 PMAQI
4th Aug 2025426 PMAQI
4th Aug 2025427 PMAQI
4th Aug 2025358 PMAQI
4th Aug 2025329 PMAQI
4th Aug 20253210 PMAQI
4th Aug 20253311 PMAQI
5th Aug 20252812 AMAQI
5th Aug 2025261 AMAQI
5th Aug 2025242 AMAQI
5th Aug 2025233 AMAQI
5th Aug 2025234 AMAQI
24°C18/31°C
5th Aug 2025235 AMAQI
5th Aug 2025246 AMAQI
5th Aug 2025277 AMAQI
5th Aug 2025298 AMAQI
5th Aug 2025309 AMAQI
5th Aug 20253810 AMAQI
5th Aug 20254511 AMAQI
5th Aug 20254712 PMAQI
5th Aug 2025461 PMAQI
5th Aug 2025462 PMAQI
5th Aug 2025473 PMAQI
5th Aug 2025464 PMAQI
5th Aug 2025435 PMAQI
5th Aug 2025446 PMAQI
5th Aug 2025347 PMAQI
5th Aug 2025368 PMAQI
5th Aug 2025369 PMAQI
5th Aug 20253810 PMAQI
5th Aug 20253711 PMAQI
6th Aug 20254112 AMAQI
6th Aug 2025421 AMAQI
6th Aug 2025442 AMAQI
6th Aug 2025483 AMAQI
6th Aug 2025494 AMAQI
25°C20/32°C
6th Aug 2025525 AMAQI
6th Aug 2025516 AMAQI
6th Aug 2025507 AMAQI
6th Aug 2025548 AMAQI
6th Aug 2025559 AMAQI
6th Aug 20255610 AMAQI
6th Aug 20255811 AMAQI
6th Aug 20255812 PMAQI
6th Aug 2025561 PMAQI
6th Aug 2025572 PMAQI
6th Aug 2025573 PMAQI
6th Aug 2025564 PMAQI
6th Aug 2025575 PMAQI
6th Aug 2025566 PMAQI
6th Aug 2025527 PMAQI
6th Aug 2025538 PMAQI
6th Aug 2025569 PMAQI
6th Aug 20255910 PMAQI
6th Aug 20256211 PMAQI
7th Aug 20255812 AMAQI
7th Aug 2025531 AMAQI
7th Aug 2025522 AMAQI
7th Aug 2025523 AMAQI
7th Aug 2025524 AMAQI
27°C20/34°C
7th Aug 2025515 AMAQI
7th Aug 2025526 AMAQI
7th Aug 2025537 AMAQI
7th Aug 2025548 AMAQI
7th Aug 2025559 AMAQI
7th Aug 20255410 AMAQI
7th Aug 20255411 AMAQI
7th Aug 20255512 PMAQI
7th Aug 2025551 PMAQI
7th Aug 2025552 PMAQI
7th Aug 2025563 PMAQI
7th Aug 2025554 PMAQI
7th Aug 2025565 PMAQI
7th Aug 2025556 PMAQI
7th Aug 2025557 PMAQI
7th Aug 2025568 PMAQI
7th Aug 2025549 PMAQI
7th Aug 20255610 PMAQI
7th Aug 20255611 PMAQI
8th Aug 20255612 AMAQI
8th Aug 2025561 AMAQI
8th Aug 2025572 AMAQI
8th Aug 2025563 AMAQI
8th Aug 2025544 AMAQI
28°C22/35°C
8th Aug 2025535 AMAQI
8th Aug 2025546 AMAQI
8th Aug 2025537 AMAQI
8th Aug 2025538 AMAQI
8th Aug 2025549 AMAQI
8th Aug 20255410 AMAQI
8th Aug 20255811 AMAQI
8th Aug 20255412 PMAQI
8th Aug 2025531 PMAQI
8th Aug 2025542 PMAQI
8th Aug 2025543 PMAQI
8th Aug 2025544 PMAQI
8th Aug 2025545 PMAQI
8th Aug 2025546 PMAQI
8th Aug 2025557 PMAQI
8th Aug 2025548 PMAQI
8th Aug 2025549 PMAQI
8th Aug 20255410 PMAQI
8th Aug 20255511 PMAQI
9th Aug 20255512 AMAQI
9th Aug 2025551 AMAQI
9th Aug 2025522 AMAQI
9th Aug 2025523 AMAQI
9th Aug 2025514 AMAQI
30°C24/37°C
9th Aug 2025525 AMAQI
9th Aug 2025526 AMAQI
9th Aug 2025527 AMAQI
9th Aug 2025508 AMAQI
9th Aug 2025519 AMAQI
9th Aug 20254810 AMAQI
9th Aug 20254811 AMAQI
9th Aug 20255012 PMAQI
9th Aug 2025511 PMAQI
9th Aug 2025522 PMAQI
9th Aug 2025523 PMAQI
9th Aug 2025524 PMAQI
9th Aug 2025535 PMAQI
9th Aug 2025526 PMAQI
9th Aug 2025527 PMAQI
9th Aug 2025528 PMAQI
9th Aug 2025529 PMAQI
9th Aug 20255310 PMAQI
9th Aug 20255211 PMAQI
10th Aug 20255312 AMAQI
10th Aug 2025531 AMAQI
10th Aug 2025522 AMAQI
10th Aug 2025493 AMAQI
10th Aug 2025514 AMAQI
29°C23/37°C
10th Aug 2025485 AMAQI
10th Aug 2025506 AMAQI
10th Aug 2025527 AMAQI
10th Aug 2025518 AMAQI
10th Aug 2025509 AMAQI
10th Aug 20255010 AMAQI
10th Aug 20255011 AMAQI
10th Aug 20254912 PMAQI
10th Aug 2025481 PMAQI
10th Aug 2025492 PMAQI
10th Aug 2025513 PMAQI
10th Aug 2025504 PMAQI
10th Aug 2025485 PMAQI
10th Aug 2025466 PMAQI
10th Aug 2025507 PMAQI
10th Aug 2025508 PMAQI
10th Aug 2025439 PMAQI
10th Aug 20254410 PMAQI
10th Aug 20254311 PMAQI
11th Aug 20254612 AMAQI
11th Aug 2025381 AMAQI
11th Aug 2025342 AMAQI
11th Aug 2025343 AMAQI
11th Aug 2025344 AMAQI
28°C22/33°C
11th Aug 2025345 AMAQI
5 AM11th Aug 2025346 AMAQI
11th Aug 2025367 AMAQI
11th Aug 2025398 AMAQI
11th Aug 2025439 AMAQI
11th Aug 20254710 AMAQI
11th Aug 20255211 AMAQI
11th Aug 20255312 PMAQI
12 PM11th Aug 2025531 PMAQI
11th Aug 2025522 PMAQI
11th Aug 2025543 PMAQI
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
47AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
47AQI
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. 47), while the lowest AQI was between 5 AM to 8 PM (Avg. 47).
Night time
Avg. Highest Time
12 AM - 1 AM
49AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 11 PM
47AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 49), while the lowest AQI was between 2 AM to 11 PM (Avg. 47).
2025 Days Vs Air Quality
East St Louis, Illinois, United States
2025
81%
179
18%
41
0.9%
2
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
179 DaysModerate
41 DaysPoor
2 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 81%
Health Risk Level:
Low
In 2025, 81% of 223 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
East St Louis, 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 January 2025
23AQI
23AQI
2nd January 2025
34AQI
34AQI
3rd January 2025
26AQI
26AQI
4th January 2025
21AQI
21AQI
5th January 2025
21AQI
21AQI
6th January 2025
19AQI
19AQI
7th January 2025
27AQI
27AQI
8th January 2025
39AQI
39AQI
9th January 2025
54AQI
54AQI
10th January 2025
55AQI
55AQI
11th January 2025
37AQI
37AQI
12th January 2025
31AQI
31AQI
13th January 2025
23AQI
23AQI
14th January 2025
28AQI
28AQI
15th January 2025
38AQI
38AQI
16th January 2025
33AQI
33AQI
17th January 2025
34AQI
34AQI
18th January 2025
21AQI
21AQI
19th January 2025
18AQI
18AQI
20th January 2025
20AQI
20AQI
21st January 2025
23AQI
23AQI
22nd January 2025
27AQI
27AQI
23rd January 2025
31AQI
31AQI
24th January 2025
34AQI
34AQI
25th January 2025
40AQI
40AQI
26th January 2025
31AQI
31AQI
27th January 2025
31AQI
31AQI
28th January 2025
23AQI
23AQI
29th January 2025
29AQI
29AQI
30th January 2025
37AQI
37AQI
31st January 2025
21AQI
21AQI
1st February 2025
36AQI
36AQI
2nd February 2025
30AQI
30AQI
3rd February 2025
35AQI
35AQI
4th February 2025
27AQI
27AQI
5th February 2025
28AQI
28AQI
6th February 2025
29AQI
29AQI
7th February 2025
31AQI
31AQI
8th February 2025
31AQI
31AQI
9th February 2025
33AQI
33AQI
10th February 2025
29AQI
29AQI
11th February 2025
33AQI
33AQI
12th February 2025
55AQI
55AQI
13th February 2025
31AQI
31AQI
14th February 2025
32AQI
32AQI
15th February 2025
30AQI
30AQI
16th February 2025
36AQI
36AQI
17th February 2025
20AQI
20AQI
18th February 2025
21AQI
21AQI
19th February 2025
21AQI
21AQI
20th February 2025
22AQI
22AQI
21st February 2025
36AQI
36AQI
22nd February 2025
43AQI
43AQI
23rd February 2025
36AQI
36AQI
24th February 2025
37AQI
37AQI
25th February 2025
37AQI
37AQI
26th February 2025
31AQI
31AQI
27th February 2025
29AQI
29AQI
28th February 2025
29AQI
29AQI
1st March 2025
25AQI
25AQI
2nd March 2025
31AQI
31AQI
3rd March 2025
33AQI
33AQI
4th March 2025
47AQI
47AQI
5th March 2025
24AQI
24AQI
6th March 2025
30AQI
30AQI
7th March 2025
28AQI
28AQI
8th March 2025
35AQI
35AQI
9th March 2025
48AQI
48AQI
10th March 2025
46AQI
46AQI
11th March 2025
56AQI
56AQI
12th March 2025
55AQI
55AQI
13th March 2025
68AQI
68AQI
14th March 2025
56AQI
56AQI
15th March 2025
132AQI
132AQI
16th March 2025
29AQI
29AQI
17th March 2025
50AQI
50AQI
18th March 2025
38AQI
38AQI
19th March 2025
41AQI
41AQI
20th March 2025
27AQI
27AQI
21st March 2025
40AQI
40AQI
22nd March 2025
23AQI
23AQI
23rd March 2025
27AQI
27AQI
24th March 2025
21AQI
21AQI
25th March 2025
27AQI
27AQI
26th March 2025
39AQI
39AQI
27th March 2025
51AQI
51AQI
28th March 2025
37AQI
37AQI
29th March 2025
41AQI
41AQI
30th March 2025
26AQI
26AQI
31st March 2025
20AQI
20AQI
1st April 2025
34AQI
34AQI
2nd April 2025
37AQI
37AQI
3rd April 2025
31AQI
31AQI
4th April 2025
23AQI
23AQI
5th April 2025
24AQI
24AQI
6th April 2025
21AQI
21AQI
7th April 2025
32AQI
32AQI
8th April 2025
22AQI
22AQI
9th April 2025
32AQI
32AQI
10th April 2025
46AQI
46AQI
11th April 2025
42AQI
42AQI
12th April 2025
53AQI
53AQI
13th April 2025
42AQI
42AQI
14th April 2025
39AQI
39AQI
15th April 2025
24AQI
24AQI
16th April 2025
38AQI
38AQI
17th April 2025
49AQI
49AQI
18th April 2025
57AQI
57AQI
19th April 2025
48AQI
48AQI
20th April 2025
50AQI
50AQI
21st April 2025
24AQI
24AQI
22nd April 2025
38AQI
38AQI
23rd April 2025
38AQI
38AQI
24th April 2025
48AQI
48AQI
25th April 2025
40AQI
40AQI
26th April 2025
27AQI
27AQI
27th April 2025
26AQI
26AQI
28th April 2025
37AQI
37AQI
29th April 2025
35AQI
35AQI
30th April 2025
32AQI
32AQI
1st May 2025
27AQI
27AQI
2nd May 2025
28AQI
28AQI
3rd May 2025
26AQI
26AQI
4th May 2025
19AQI
19AQI
5th May 2025
21AQI
21AQI
6th May 2025
37AQI
37AQI
7th May 2025
29AQI
29AQI
8th May 2025
30AQI
30AQI
9th May 2025
26AQI
26AQI
10th May 2025
40AQI
40AQI
11th May 2025
36AQI
36AQI
12th May 2025
34AQI
34AQI
13th May 2025
30AQI
30AQI
14th May 2025
42AQI
42AQI
15th May 2025
57AQI
57AQI
16th May 2025
47AQI
47AQI
17th May 2025
27AQI
27AQI
18th May 2025
25AQI
25AQI
19th May 2025
34AQI
34AQI
20th May 2025
29AQI
29AQI
21st May 2025
20AQI
20AQI
22nd May 2025
17AQI
17AQI
23rd May 2025
22AQI
22AQI
24th May 2025
35AQI
35AQI
25th May 2025
36AQI
36AQI
26th May 2025
22AQI
22AQI
27th May 2025
26AQI
26AQI
28th May 2025
27AQI
27AQI
29th May 2025
48AQI
48AQI
30th May 2025
31AQI
31AQI
31st May 2025
43AQI
43AQI
1st June 2025
44AQI
44AQI
2nd June 2025
50AQI
50AQI
3rd June 2025
61AQI
61AQI
4th June 2025
50AQI
50AQI
5th June 2025
46AQI
46AQI
6th June 2025
54AQI
54AQI
7th June 2025
79AQI
79AQI
8th June 2025
57AQI
57AQI
9th June 2025
60AQI
60AQI
10th June 2025
64AQI
64AQI
11th June 2025
78AQI
78AQI
12th June 2025
80AQI
80AQI
13th June 2025
49AQI
49AQI
14th June 2025
39AQI
39AQI
15th June 2025
50AQI
50AQI
16th June 2025
37AQI
37AQI
17th June 2025
39AQI
39AQI
18th June 2025
35AQI
35AQI
19th June 2025
24AQI
24AQI
20th June 2025
41AQI
41AQI
21st June 2025
52AQI
52AQI
22nd June 2025
54AQI
54AQI
23rd June 2025
59AQI
59AQI
24th June 2025
55AQI
55AQI
25th June 2025
53AQI
53AQI
26th June 2025
53AQI
53AQI
27th June 2025
40AQI
40AQI
28th June 2025
29AQI
29AQI
29th June 2025
26AQI
26AQI
30th June 2025
31AQI
31AQI
1st July 2025
29AQI
29AQI
2nd July 2025
48AQI
48AQI
3rd July 2025
55AQI
55AQI
4th July 2025
65AQI
65AQI
5th July 2025
88AQI
88AQI
6th July 2025
64AQI
64AQI
7th July 2025
39AQI
39AQI
8th July 2025
56AQI
56AQI
9th July 2025
40AQI
40AQI
10th July 2025
44AQI
44AQI
11th July 2025
46AQI
46AQI
12th July 2025
36AQI
36AQI
13th July 2025
36AQI
36AQI
14th July 2025
32AQI
32AQI
15th July 2025
41AQI
41AQI
16th July 2025
37AQI
37AQI
17th July 2025
34AQI
34AQI
18th July 2025
32AQI
32AQI
19th July 2025
51AQI
51AQI
20th July 2025
53AQI
53AQI
21st July 2025
31AQI
31AQI
22nd July 2025
45AQI
45AQI
23rd July 2025
55AQI
55AQI
24th July 2025
57AQI
57AQI
25th July 2025
48AQI
48AQI
26th July 2025
50AQI
50AQI
27th July 2025
29AQI
29AQI
28th July 2025
37AQI
37AQI
29th July 2025
52AQI
52AQI
30th July 2025
51AQI
51AQI
31st July 2025
45AQI
45AQI
1st August 2025
107AQI
107AQI
2nd August 2025
77AQI
77AQI
3rd August 2025
44AQI
44AQI
4th August 2025
40AQI
40AQI
5th August 2025
34AQI
34AQI
6th August 2025
53AQI
53AQI
7th August 2025
54AQI
54AQI
8th August 2025
55AQI
55AQI
9th August 2025
52AQI
52AQI
10th August 2025
49AQI
49AQI
30AQI
32AQI
40AQI
36AQI
31AQI
50AQI
46AQI
57AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202539AQI
29
2
27
1
25
5
1
28
2
30
1
16
14
20
11
4
5
1
179
41
2
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
January30AQI
202438AQI
28
3
19
10
27
4
27
3
29
2
26
4
19
12
21
10
27
3
21
10
30
29
2
303
63
Highest AQI recorded in
July47AQI
Lowest AQI recorded in
November26AQI
202346AQI
20
11
24
4
22
9
25
5
19
12
3
25
2
21
10
19
12
17
13
21
10
21
8
28
3
240
122
2
Highest AQI recorded in
June68AQI
Lowest AQI recorded in
December33AQI
202242AQI
25
6
18
4
25
6
28
2
26
5
20
10
11
12
2
2
26
4
25
6
18
12
19
12
243
81
Highest AQI recorded in
July49AQI
Lowest AQI recorded in
April36AQI
202144AQI
25
5
22
6
27
4
27
3
28
3
14
16
15
16
17
14
28
2
26
5
18
10
17
14
264
98
Highest AQI recorded in
July56AQI
Lowest AQI recorded in
May35AQI
202039AQI
9
20
17
1
25
5
22
9
23
8
25
4
28
3
12
18
6
199
36
Highest AQI recorded in
December43AQI
Lowest AQI recorded in
November31AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
46AQILeast Polluted Year Recorded
2024(Avg.)
38AQIEast St Louis's annual 2025 AQI (39) shows an average percentage change of -6.1% (improved AQI) compared to previous years: 2020 (39), 2021 (44), 2022 (42), 2023 (46), 2024 (38).
