Illinois 1, West Union, 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
Illinois 1, West Union, Illinois, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
88AQILowest AQI recorded on
4th Aug 2025
36AQISame Day Analysis (4th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 36 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Illinois 1, West Union, Illinois, United States
AQI
Day
Night
.
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
Day time
Avg. Highest Time
3PM4th Aug
45AQI
Avg. Lowest Time
6PM4th Aug
32AQI
Night time
Avg. Highest Time
10PM4th Aug
40AQI
Avg. Lowest Time
3AM5th Aug
35AQI
In the last 24 hours,
Illinois 1's AQI reached its highest point of 45 at 3 PM during the Day, while the lowest point, 32, was recorded at 6 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Illinois 1, West Union, Illinois, United States
JulAug
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 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
Day
Night
6th Jul 2025605 AMAQI
6th Jul 2025626 AMAQI
6th Jul 2025627 AMAQI
6th Jul 2025608 AMAQI
6th Jul 2025609 AMAQI
6th Jul 20256110 AMAQI
6th Jul 20256111 AMAQI
6th Jul 20256112 PMAQI
6th Jul 2025601 PMAQI
6th Jul 2025622 PMAQI
6th Jul 2025623 PMAQI
6th Jul 2025624 PMAQI
6th Jul 2025625 PMAQI
6th Jul 2025616 PMAQI
6th Jul 2025627 PMAQI
6th Jul 2025628 PMAQI
6th Jul 2025599 PMAQI
6th Jul 20255810 PMAQI
6th Jul 20255811 PMAQI
7th Jul 20255612 AMAQI
7th Jul 2025501 AMAQI
7th Jul 2025442 AMAQI
7th Jul 2025443 AMAQI
7th Jul 2025414 AMAQI
26°C21/32°C
7th Jul 2025465 AMAQI
7th Jul 2025476 AMAQI
7th Jul 2025447 AMAQI
7th Jul 2025448 AMAQI
7th Jul 2025499 AMAQI
7th Jul 20254610 AMAQI
7th Jul 20254411 AMAQI
7th Jul 20254712 PMAQI
7th Jul 2025471 PMAQI
7th Jul 2025472 PMAQI
7th Jul 2025523 PMAQI
7th Jul 2025524 PMAQI
7th Jul 2025525 PMAQI
7th Jul 2025516 PMAQI
7th Jul 2025527 PMAQI
7th Jul 2025508 PMAQI
7th Jul 2025529 PMAQI
7th Jul 20255410 PMAQI
7th Jul 20255311 PMAQI
8th Jul 20255412 AMAQI
8th Jul 2025521 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025543 AMAQI
8th Jul 2025544 AMAQI
25°C22/30°C
8th Jul 2025535 AMAQI
8th Jul 2025546 AMAQI
8th Jul 2025527 AMAQI
8th Jul 2025538 AMAQI
8th Jul 2025559 AMAQI
8th Jul 20255510 AMAQI
8th Jul 20255511 AMAQI
8th Jul 20255712 PMAQI
8th Jul 2025591 PMAQI
8th Jul 2025592 PMAQI
8th Jul 2025593 PMAQI
8th Jul 2025594 PMAQI
8th Jul 2025585 PMAQI
8th Jul 2025576 PMAQI
8th Jul 2025557 PMAQI
8th Jul 2025558 PMAQI
8th Jul 2025569 PMAQI
8th Jul 20255610 PMAQI
8th Jul 20255611 PMAQI
9th Jul 20255612 AMAQI
9th Jul 2025561 AMAQI
9th Jul 2025522 AMAQI
9th Jul 2025533 AMAQI
9th Jul 2025524 AMAQI
25°C16/31°C
9th Jul 2025525 AMAQI
9th Jul 2025526 AMAQI
9th Jul 2025547 AMAQI
9th Jul 2025548 AMAQI
9th Jul 2025549 AMAQI
9th Jul 20255410 AMAQI
9th Jul 20255311 AMAQI
9th Jul 20255912 PMAQI
9th Jul 2025561 PMAQI
9th Jul 2025552 PMAQI
9th Jul 2025533 PMAQI
9th Jul 2025524 PMAQI
9th Jul 2025525 PMAQI
9th Jul 2025526 PMAQI
9th Jul 2025547 PMAQI
9th Jul 2025548 PMAQI
9th Jul 2025519 PMAQI
9th Jul 20255010 PMAQI
9th Jul 20255011 PMAQI
10th Jul 20254812 AMAQI
10th Jul 2025461 AMAQI
10th Jul 2025482 AMAQI
10th Jul 2025423 AMAQI
10th Jul 2025424 AMAQI
26°C20/30°C
10th Jul 2025375 AMAQI
10th Jul 2025386 AMAQI
10th Jul 2025387 AMAQI
10th Jul 2025438 AMAQI
10th Jul 2025409 AMAQI
10th Jul 20253910 AMAQI
10th Jul 20254011 AMAQI
10th Jul 20254012 PMAQI
10th Jul 2025411 PMAQI
10th Jul 2025432 PMAQI
10th Jul 2025443 PMAQI
10th Jul 2025464 PMAQI
10th Jul 2025445 PMAQI
10th Jul 2025446 PMAQI
10th Jul 2025447 PMAQI
10th Jul 2025428 PMAQI
10th Jul 2025419 PMAQI
10th Jul 20254410 PMAQI
10th Jul 20254511 PMAQI
11th Jul 20254412 AMAQI
11th Jul 2025461 AMAQI
11th Jul 2025432 AMAQI
11th Jul 2025403 AMAQI
11th Jul 2025364 AMAQI
26°C19/32°C
11th Jul 2025425 AMAQI
11th Jul 2025386 AMAQI
11th Jul 2025417 AMAQI
11th Jul 2025448 AMAQI
11th Jul 2025429 AMAQI
11th Jul 20254210 AMAQI
11th Jul 20254811 AMAQI
11th Jul 20254712 PMAQI
11th Jul 2025451 PMAQI
11th Jul 2025432 PMAQI
11th Jul 2025463 PMAQI
11th Jul 2025474 PMAQI
11th Jul 2025475 PMAQI
11th Jul 2025476 PMAQI
11th Jul 2025447 PMAQI
11th Jul 2025468 PMAQI
11th Jul 2025509 PMAQI
11th Jul 20254910 PMAQI
11th Jul 20255011 PMAQI
12th Jul 20254912 AMAQI
12th Jul 2025501 AMAQI
12th Jul 2025482 AMAQI
12th Jul 2025463 AMAQI
12th Jul 2025444 AMAQI
27°C20/33°C
12th Jul 2025445 AMAQI
12th Jul 2025426 AMAQI
12th Jul 2025417 AMAQI
12th Jul 2025448 AMAQI
12th Jul 2025469 AMAQI
12th Jul 20254610 AMAQI
12th Jul 20254811 AMAQI
12th Jul 20254912 PMAQI
12th Jul 2025461 PMAQI
12th Jul 2025462 PMAQI
12th Jul 2025463 PMAQI
12th Jul 2025424 PMAQI
12th Jul 2025445 PMAQI
12th Jul 2025436 PMAQI
12th Jul 2025447 PMAQI
12th Jul 2025478 PMAQI
12th Jul 2025449 PMAQI
12th Jul 20254410 PMAQI
12th Jul 20254011 PMAQI
13th Jul 20254112 AMAQI
13th Jul 2025401 AMAQI
13th Jul 2025372 AMAQI
13th Jul 2025363 AMAQI
13th Jul 2025354 AMAQI
26°C23/30°C
13th Jul 2025355 AMAQI
13th Jul 2025356 AMAQI
13th Jul 2025377 AMAQI
13th Jul 2025358 AMAQI
13th Jul 2025359 AMAQI
13th Jul 20253610 AMAQI
13th Jul 20253611 AMAQI
13th Jul 20253912 PMAQI
13th Jul 2025391 PMAQI
13th Jul 2025382 PMAQI
13th Jul 2025393 PMAQI
13th Jul 2025394 PMAQI
13th Jul 2025395 PMAQI
13th Jul 2025396 PMAQI
13th Jul 2025387 PMAQI
13th Jul 2025388 PMAQI
13th Jul 2025389 PMAQI
13th Jul 20253810 PMAQI
13th Jul 20253811 PMAQI
14th Jul 20253712 AMAQI
14th Jul 2025361 AMAQI
14th Jul 2025312 AMAQI
14th Jul 2025303 AMAQI
14th Jul 2025294 AMAQI
24°C20/32°C
14th Jul 2025285 AMAQI
14th Jul 2025286 AMAQI
14th Jul 2025287 AMAQI
14th Jul 2025288 AMAQI
14th Jul 2025309 AMAQI
14th Jul 20253110 AMAQI
14th Jul 20253411 AMAQI
14th Jul 20253712 PMAQI
14th Jul 2025341 PMAQI
14th Jul 2025332 PMAQI
14th Jul 2025343 PMAQI
14th Jul 2025354 PMAQI
14th Jul 2025405 PMAQI
14th Jul 2025386 PMAQI
14th Jul 2025357 PMAQI
14th Jul 2025338 PMAQI
14th Jul 2025359 PMAQI
14th Jul 20253610 PMAQI
14th Jul 20253811 PMAQI
15th Jul 20253912 AMAQI
15th Jul 2025371 AMAQI
15th Jul 2025362 AMAQI
15th Jul 2025363 AMAQI
15th Jul 2025334 AMAQI
26°C21/31°C
15th Jul 2025345 AMAQI
15th Jul 2025346 AMAQI
15th Jul 2025357 AMAQI
15th Jul 2025408 AMAQI
15th Jul 2025389 AMAQI
15th Jul 20253610 AMAQI
15th Jul 20253411 AMAQI
15th Jul 20253712 PMAQI
15th Jul 2025381 PMAQI
15th Jul 2025382 PMAQI
15th Jul 2025383 PMAQI
15th Jul 2025394 PMAQI
15th Jul 2025405 PMAQI
15th Jul 2025376 PMAQI
15th Jul 2025387 PMAQI
15th Jul 2025398 PMAQI
15th Jul 2025369 PMAQI
15th Jul 20253910 PMAQI
15th Jul 20253711 PMAQI
16th Jul 20253712 AMAQI
16th Jul 2025351 AMAQI
16th Jul 2025372 AMAQI
16th Jul 2025363 AMAQI
16th Jul 2025334 AMAQI
26°C22/29°C
16th Jul 2025315 AMAQI
16th Jul 2025326 AMAQI
16th Jul 2025337 AMAQI
16th Jul 2025328 AMAQI
16th Jul 2025339 AMAQI
16th Jul 20253610 AMAQI
16th Jul 20253611 AMAQI
16th Jul 20253812 PMAQI
16th Jul 2025371 PMAQI
16th Jul 2025362 PMAQI
16th Jul 2025383 PMAQI
16th Jul 2025384 PMAQI
16th Jul 2025375 PMAQI
16th Jul 2025366 PMAQI
16th Jul 2025387 PMAQI
16th Jul 2025378 PMAQI
16th Jul 2025369 PMAQI
16th Jul 20253210 PMAQI
16th Jul 20253211 PMAQI
17th Jul 20253112 AMAQI
17th Jul 2025271 AMAQI
17th Jul 2025282 AMAQI
17th Jul 2025313 AMAQI
17th Jul 2025304 AMAQI
27°C22/33°C
17th Jul 2025305 AMAQI
17th Jul 2025266 AMAQI
17th Jul 2025267 AMAQI
17th Jul 2025268 AMAQI
17th Jul 2025279 AMAQI
17th Jul 20253110 AMAQI
17th Jul 20253211 AMAQI
17th Jul 20253312 PMAQI
17th Jul 2025351 PMAQI
17th Jul 2025322 PMAQI
17th Jul 2025333 PMAQI
17th Jul 2025324 PMAQI
17th Jul 2025325 PMAQI
17th Jul 2025306 PMAQI
17th Jul 2025307 PMAQI
17th Jul 2025308 PMAQI
17th Jul 2025299 PMAQI
17th Jul 20252810 PMAQI
17th Jul 20252711 PMAQI
18th Jul 20252612 AMAQI
18th Jul 2025261 AMAQI
18th Jul 2025222 AMAQI
18th Jul 2025223 AMAQI
18th Jul 2025214 AMAQI
26°C21/31°C
18th Jul 2025225 AMAQI
18th Jul 2025246 AMAQI
18th Jul 2025227 AMAQI
18th Jul 2025218 AMAQI
18th Jul 2025219 AMAQI
18th Jul 20252210 AMAQI
18th Jul 20252311 AMAQI
18th Jul 20252412 PMAQI
18th Jul 2025281 PMAQI
18th Jul 2025292 PMAQI
18th Jul 2025313 PMAQI
18th Jul 2025334 PMAQI
18th Jul 2025315 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025257 PMAQI
18th Jul 2025268 PMAQI
18th Jul 2025329 PMAQI
18th Jul 20253110 PMAQI
18th Jul 20253111 PMAQI
19th Jul 20253212 AMAQI
19th Jul 2025341 AMAQI
19th Jul 2025422 AMAQI
19th Jul 2025433 AMAQI
19th Jul 2025344 AMAQI
25°C20/30°C
19th Jul 2025325 AMAQI
19th Jul 2025336 AMAQI
19th Jul 2025347 AMAQI
19th Jul 2025328 AMAQI
19th Jul 2025349 AMAQI
19th Jul 20253410 AMAQI
19th Jul 20253711 AMAQI
19th Jul 20253912 PMAQI
19th Jul 2025381 PMAQI
19th Jul 2025362 PMAQI
19th Jul 2025383 PMAQI
19th Jul 2025354 PMAQI
19th Jul 2025325 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025367 PMAQI
19th Jul 2025368 PMAQI
19th Jul 2025359 PMAQI
19th Jul 20253610 PMAQI
19th Jul 20253511 PMAQI
20th Jul 20253512 AMAQI
20th Jul 2025341 AMAQI
20th Jul 2025302 AMAQI
20th Jul 2025323 AMAQI
20th Jul 2025334 AMAQI
25°C21/30°C
20th Jul 2025305 AMAQI
20th Jul 2025326 AMAQI
20th Jul 2025317 AMAQI
20th Jul 2025338 AMAQI
20th Jul 2025329 AMAQI
20th Jul 20253310 AMAQI
20th Jul 20253411 AMAQI
20th Jul 20253812 PMAQI
20th Jul 2025411 PMAQI
20th Jul 2025452 PMAQI
20th Jul 2025443 PMAQI
20th Jul 2025444 PMAQI
20th Jul 2025445 PMAQI
20th Jul 2025416 PMAQI
20th Jul 2025387 PMAQI
20th Jul 2025368 PMAQI
20th Jul 2025409 PMAQI
20th Jul 20253710 PMAQI
20th Jul 20253511 PMAQI
21st Jul 20253712 AMAQI
21st Jul 2025351 AMAQI
21st Jul 2025342 AMAQI
21st Jul 2025263 AMAQI
21st Jul 2025264 AMAQI
27°C21/33°C
21st Jul 2025295 AMAQI
21st Jul 2025286 AMAQI
21st Jul 2025277 AMAQI
21st Jul 2025268 AMAQI
21st Jul 2025279 AMAQI
21st Jul 20252810 AMAQI
21st Jul 20253011 AMAQI
21st Jul 20252812 PMAQI
21st Jul 2025281 PMAQI
21st Jul 2025312 PMAQI
21st Jul 2025343 PMAQI
21st Jul 2025344 PMAQI
21st Jul 2025355 PMAQI
21st Jul 2025346 PMAQI
21st Jul 2025307 PMAQI
21st Jul 2025308 PMAQI
21st Jul 2025369 PMAQI
21st Jul 20253710 PMAQI
21st Jul 20253611 PMAQI
22nd Jul 20253512 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025342 AMAQI
22nd Jul 2025383 AMAQI
22nd Jul 2025394 AMAQI
25°C23/28°C
22nd Jul 2025465 AMAQI
22nd Jul 2025516 AMAQI
22nd Jul 2025517 AMAQI
22nd Jul 2025538 AMAQI
22nd Jul 2025539 AMAQI
22nd Jul 20255410 AMAQI
22nd Jul 20255211 AMAQI
22nd Jul 20255212 PMAQI
22nd Jul 2025471 PMAQI
22nd Jul 2025532 PMAQI
22nd Jul 2025533 PMAQI
22nd Jul 2025534 PMAQI
22nd Jul 2025525 PMAQI
22nd Jul 2025516 PMAQI
22nd Jul 2025527 PMAQI
22nd Jul 2025498 PMAQI
22nd Jul 2025489 PMAQI
22nd Jul 20255210 PMAQI
22nd Jul 20255311 PMAQI
23rd Jul 20255312 AMAQI
23rd Jul 2025521 AMAQI
23rd Jul 2025542 AMAQI
23rd Jul 2025523 AMAQI
23rd Jul 2025554 AMAQI
26°C20/32°C
23rd Jul 2025565 AMAQI
23rd Jul 2025556 AMAQI
23rd Jul 2025567 AMAQI
23rd Jul 2025578 AMAQI
23rd Jul 2025569 AMAQI
23rd Jul 20255710 AMAQI
23rd Jul 20255711 AMAQI
23rd Jul 20255712 PMAQI
23rd Jul 2025541 PMAQI
23rd Jul 2025562 PMAQI
23rd Jul 2025563 PMAQI
23rd Jul 2025564 PMAQI
23rd Jul 2025565 PMAQI
23rd Jul 2025566 PMAQI
23rd Jul 2025567 PMAQI
23rd Jul 2025578 PMAQI
23rd Jul 2025569 PMAQI
23rd Jul 20255510 PMAQI
23rd Jul 20255611 PMAQI
24th Jul 20255612 AMAQI
24th Jul 2025551 AMAQI
24th Jul 2025522 AMAQI
24th Jul 2025523 AMAQI
24th Jul 2025524 AMAQI
28°C21/34°C
24th Jul 2025505 AMAQI
24th Jul 2025526 AMAQI
24th Jul 2025537 AMAQI
24th Jul 2025528 AMAQI
24th Jul 2025529 AMAQI
24th Jul 20255210 AMAQI
24th Jul 20255211 AMAQI
24th Jul 20255212 PMAQI
24th Jul 2025541 PMAQI
24th Jul 2025552 PMAQI
24th Jul 2025553 PMAQI
24th Jul 2025554 PMAQI
24th Jul 2025555 PMAQI
24th Jul 2025566 PMAQI
24th Jul 2025557 PMAQI
24th Jul 2025558 PMAQI
24th Jul 2025569 PMAQI
24th Jul 20255610 PMAQI
24th Jul 20255511 PMAQI
25th Jul 20255412 AMAQI
25th Jul 2025531 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025503 AMAQI
25th Jul 2025474 AMAQI
29°C23/35°C
25th Jul 2025445 AMAQI
25th Jul 2025416 AMAQI
25th Jul 2025437 AMAQI
25th Jul 2025428 AMAQI
25th Jul 2025499 AMAQI
25th Jul 20255010 AMAQI
25th Jul 20255211 AMAQI
25th Jul 20254812 PMAQI
25th Jul 2025521 PMAQI
25th Jul 2025522 PMAQI
25th Jul 2025533 PMAQI
25th Jul 2025534 PMAQI
25th Jul 2025525 PMAQI
25th Jul 2025526 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025528 PMAQI
25th Jul 2025519 PMAQI
25th Jul 20255010 PMAQI
25th Jul 20255111 PMAQI
26th Jul 20255212 AMAQI
26th Jul 2025511 AMAQI
26th Jul 2025512 AMAQI
26th Jul 2025503 AMAQI
26th Jul 2025514 AMAQI
29°C25/34°C
26th Jul 2025485 AMAQI
26th Jul 2025486 AMAQI
26th Jul 2025467 AMAQI
26th Jul 2025448 AMAQI
26th Jul 2025439 AMAQI
26th Jul 20254410 AMAQI
26th Jul 20254611 AMAQI
26th Jul 20254812 PMAQI
26th Jul 2025451 PMAQI
26th Jul 2025462 PMAQI
26th Jul 2025483 PMAQI
26th Jul 2025474 PMAQI
26th Jul 2025465 PMAQI
26th Jul 2025466 PMAQI
26th Jul 2025467 PMAQI
26th Jul 2025488 PMAQI
26th Jul 2025409 PMAQI
26th Jul 20254110 PMAQI
26th Jul 20254211 PMAQI
27th Jul 20254212 AMAQI
27th Jul 2025401 AMAQI
27th Jul 2025312 AMAQI
27th Jul 2025303 AMAQI
27th Jul 2025284 AMAQI
28°C24/31°C
27th Jul 2025285 AMAQI
27th Jul 2025276 AMAQI
27th Jul 2025267 AMAQI
27th Jul 2025288 AMAQI
27th Jul 2025289 AMAQI
27th Jul 20252810 AMAQI
27th Jul 20252911 AMAQI
27th Jul 20253012 PMAQI
27th Jul 2025321 PMAQI
27th Jul 2025312 PMAQI
27th Jul 2025323 PMAQI
27th Jul 2025324 PMAQI
27th Jul 2025325 PMAQI
27th Jul 2025316 PMAQI
27th Jul 2025307 PMAQI
27th Jul 2025308 PMAQI
27th Jul 2025299 PMAQI
27th Jul 20253110 PMAQI
27th Jul 20252911 PMAQI
28th Jul 20252612 AMAQI
28th Jul 2025261 AMAQI
28th Jul 2025262 AMAQI
28th Jul 2025253 AMAQI
28th Jul 2025264 AMAQI
27°C23/31°C
28th Jul 2025285 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025267 AMAQI
28th Jul 2025258 AMAQI
28th Jul 2025269 AMAQI
28th Jul 20252810 AMAQI
28th Jul 20252811 AMAQI
28th Jul 20252812 PMAQI
28th Jul 2025281 PMAQI
28th Jul 2025332 PMAQI
28th Jul 2025373 PMAQI
28th Jul 2025384 PMAQI
28th Jul 2025405 PMAQI
28th Jul 2025406 PMAQI
28th Jul 2025307 PMAQI
28th Jul 2025298 PMAQI
28th Jul 2025329 PMAQI
28th Jul 20253010 PMAQI
28th Jul 20253011 PMAQI
29th Jul 20253012 AMAQI
29th Jul 2025281 AMAQI
29th Jul 2025362 AMAQI
29th Jul 2025323 AMAQI
29th Jul 2025294 AMAQI
28°C23/34°C
29th Jul 2025295 AMAQI
29th Jul 2025336 AMAQI
29th Jul 2025307 AMAQI
29th Jul 2025308 AMAQI
29th Jul 2025329 AMAQI
29th Jul 20253010 AMAQI
29th Jul 20253311 AMAQI
29th Jul 20253712 PMAQI
29th Jul 2025361 PMAQI
29th Jul 2025362 PMAQI
29th Jul 2025383 PMAQI
29th Jul 2025384 PMAQI
29th Jul 2025375 PMAQI
29th Jul 2025356 PMAQI
29th Jul 2025327 PMAQI
29th Jul 2025338 PMAQI
29th Jul 2025369 PMAQI
29th Jul 20253410 PMAQI
29th Jul 20253711 PMAQI
30th Jul 20253712 AMAQI
30th Jul 2025351 AMAQI
30th Jul 2025342 AMAQI
30th Jul 2025393 AMAQI
30th Jul 2025334 AMAQI
27°C21/34°C
30th Jul 2025345 AMAQI
30th Jul 2025336 AMAQI
30th Jul 2025347 AMAQI
30th Jul 2025348 AMAQI
30th Jul 2025319 AMAQI
30th Jul 20253510 AMAQI
30th Jul 20253711 AMAQI
30th Jul 20254012 PMAQI
30th Jul 2025421 PMAQI
30th Jul 2025422 PMAQI
30th Jul 2025423 PMAQI
30th Jul 2025424 PMAQI
30th Jul 2025425 PMAQI
30th Jul 2025426 PMAQI
30th Jul 2025427 PMAQI
30th Jul 2025428 PMAQI
30th Jul 2025429 PMAQI
30th Jul 20254010 PMAQI
30th Jul 20254111 PMAQI
31st Jul 20254412 AMAQI
31st Jul 2025411 AMAQI
31st Jul 2025342 AMAQI
31st Jul 2025363 AMAQI
31st Jul 2025354 AMAQI
27°C20/33°C
31st Jul 2025315 AMAQI
31st Jul 2025326 AMAQI
31st Jul 2025397 AMAQI
31st Jul 2025428 AMAQI
31st Jul 2025429 AMAQI
31st Jul 20254010 AMAQI
31st Jul 20254211 AMAQI
31st Jul 20253712 PMAQI
31st Jul 2025341 PMAQI
31st Jul 2025392 PMAQI
31st Jul 2025373 PMAQI
31st Jul 2025454 PMAQI
31st Jul 2025525 PMAQI
31st Jul 2025546 PMAQI
31st Jul 2025427 PMAQI
31st Jul 2025528 PMAQI
31st Jul 2025619 PMAQI
31st Jul 20256810 PMAQI
31st Jul 20257611 PMAQI
1st Aug 20257512 AMAQI
1st Aug 2025831 AMAQI
1st Aug 2025742 AMAQI
1st Aug 2025763 AMAQI
1st Aug 2025884 AMAQI
23°C21/24°C
1st Aug 2025875 AMAQI
1st Aug 2025966 AMAQI
1st Aug 20251007 AMAQI
1st Aug 20251008 AMAQI
1st Aug 20251059 AMAQI
1st Aug 20259910 AMAQI
1st Aug 20259811 AMAQI
1st Aug 20258812 PMAQI
1st Aug 2025821 PMAQI
1st Aug 2025872 PMAQI
1st Aug 2025863 PMAQI
1st Aug 2025854 PMAQI
1st Aug 2025885 PMAQI
1st Aug 2025886 PMAQI
1st Aug 2025907 PMAQI
1st Aug 2025868 PMAQI
1st Aug 2025909 PMAQI
1st Aug 20258710 PMAQI
1st Aug 20259111 PMAQI
2nd Aug 20259012 AMAQI
2nd Aug 2025901 AMAQI
2nd Aug 2025892 AMAQI
2nd Aug 2025903 AMAQI
2nd Aug 2025864 AMAQI
20°C15/27°C
2nd Aug 2025865 AMAQI
2nd Aug 2025836 AMAQI
2nd Aug 2025837 AMAQI
2nd Aug 2025828 AMAQI
2nd Aug 2025789 AMAQI
2nd Aug 20257410 AMAQI
2nd Aug 20257011 AMAQI
2nd Aug 20256712 PMAQI
2nd Aug 2025621 PMAQI
2nd Aug 2025622 PMAQI
2nd Aug 2025613 PMAQI
2nd Aug 2025584 PMAQI
2nd Aug 2025575 PMAQI
2nd Aug 2025556 PMAQI
2nd Aug 2025767 PMAQI
2nd Aug 2025658 PMAQI
2nd Aug 2025519 PMAQI
2nd Aug 20254910 PMAQI
2nd Aug 20255011 PMAQI
3rd Aug 20254612 AMAQI
3rd Aug 2025421 AMAQI
3rd Aug 2025412 AMAQI
3rd Aug 2025463 AMAQI
3rd Aug 2025484 AMAQI
19°C13/26°C
3rd Aug 2025465 AMAQI
3rd Aug 2025466 AMAQI
3rd Aug 2025457 AMAQI
3rd Aug 2025448 AMAQI
3rd Aug 2025449 AMAQI
3rd Aug 20254210 AMAQI
3rd Aug 20254711 AMAQI
3rd Aug 20255112 PMAQI
3rd Aug 2025481 PMAQI
3rd Aug 2025472 PMAQI
3rd Aug 2025503 PMAQI
3rd Aug 2025504 PMAQI
3rd Aug 2025505 PMAQI
3rd Aug 2025496 PMAQI
3rd Aug 2025427 PMAQI
3rd Aug 2025418 PMAQI
3rd Aug 2025409 PMAQI
3rd Aug 20253810 PMAQI
3rd Aug 20253811 PMAQI
4th Aug 20253512 AMAQI
4th Aug 2025341 AMAQI
4th Aug 2025352 AMAQI
4th Aug 2025353 AMAQI
4th Aug 2025324 AMAQI
21°C12/28°C
4th Aug 2025345 AMAQI
4th Aug 2025366 AMAQI
4th Aug 2025367 AMAQI
4th Aug 2025378 AMAQI
4th Aug 2025389 AMAQI
4th Aug 20253610 AMAQI
4th Aug 20253711 AMAQI
4th Aug 20253912 PMAQI
4th Aug 2025371 PMAQI
4th Aug 2025422 PMAQI
4th Aug 2025453 PMAQI
4th Aug 2025434 PMAQI
4th Aug 2025345 PMAQI
4th Aug 2025326 PMAQI
4th Aug 2025387 PMAQI
4th Aug 2025378 PMAQI
4th Aug 2025369 PMAQI
4th Aug 20254010 PMAQI
4th Aug 20253811 PMAQI
5th Aug 20253612 AMAQI
5th Aug 2025381 AMAQI
5th Aug 2025352 AMAQI
5th Aug 2025353 AMAQI
5th Aug 2025364 AMAQI
20°C16/23°C
5 AM
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
44AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
44AQI
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. 44), while the lowest AQI was between 5 AM to 8 PM (Avg. 44).
Night time
Avg. Highest Time
12 AM - 11 PM
44AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 4 AM
44AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 44), while the lowest AQI was between 12 AM to 4 AM (Avg. 44).
2025 Days Vs Air Quality
Illinois 1, West Union, Illinois, United States
2025
82%
108
18%
23
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
108 DaysModerate
23 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 82%
Health Risk Level:
Low
In 2025, 82% of 217 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
Illinois 1, West Union, 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
43AQI
43AQI
2nd March 2025
41AQI
41AQI
3rd March 2025
49AQI
49AQI
4th March 2025
38AQI
38AQI
5th March 2025
23AQI
23AQI
1st April 2025
30AQI
30AQI
2nd April 2025
32AQI
32AQI
3rd April 2025
27AQI
27AQI
4th April 2025
26AQI
26AQI
5th April 2025
20AQI
20AQI
6th April 2025
21AQI
21AQI
7th April 2025
28AQI
28AQI
8th April 2025
20AQI
20AQI
9th April 2025
31AQI
31AQI
10th April 2025
33AQI
33AQI
11th April 2025
33AQI
33AQI
12th April 2025
43AQI
43AQI
13th April 2025
38AQI
38AQI
14th April 2025
38AQI
38AQI
15th April 2025
24AQI
24AQI
16th April 2025
30AQI
30AQI
17th April 2025
36AQI
36AQI
18th April 2025
50AQI
50AQI
19th April 2025
38AQI
38AQI
20th April 2025
42AQI
42AQI
21st April 2025
29AQI
29AQI
22nd April 2025
37AQI
37AQI
23rd April 2025
42AQI
42AQI
24th April 2025
45AQI
45AQI
25th April 2025
33AQI
33AQI
26th April 2025
30AQI
30AQI
27th April 2025
27AQI
27AQI
28th April 2025
30AQI
30AQI
29th April 2025
37AQI
37AQI
30th April 2025
27AQI
27AQI
1st May 2025
33AQI
33AQI
2nd May 2025
27AQI
27AQI
3rd May 2025
26AQI
26AQI
4th May 2025
21AQI
21AQI
5th May 2025
21AQI
21AQI
6th May 2025
25AQI
25AQI
7th May 2025
31AQI
31AQI
8th May 2025
32AQI
32AQI
9th May 2025
28AQI
28AQI
10th May 2025
36AQI
36AQI
11th May 2025
37AQI
37AQI
12th May 2025
32AQI
32AQI
13th May 2025
26AQI
26AQI
14th May 2025
32AQI
32AQI
15th May 2025
44AQI
44AQI
16th May 2025
49AQI
49AQI
17th May 2025
30AQI
30AQI
18th May 2025
28AQI
28AQI
19th May 2025
29AQI
29AQI
20th May 2025
29AQI
29AQI
21st May 2025
19AQI
19AQI
22nd May 2025
16AQI
16AQI
23rd May 2025
23AQI
23AQI
24th May 2025
26AQI
26AQI
25th May 2025
26AQI
26AQI
26th May 2025
24AQI
24AQI
27th May 2025
23AQI
23AQI
28th May 2025
27AQI
27AQI
29th May 2025
27AQI
27AQI
30th May 2025
30AQI
30AQI
31st May 2025
45AQI
45AQI
1st June 2025
31AQI
31AQI
2nd June 2025
45AQI
45AQI
3rd June 2025
54AQI
54AQI
4th June 2025
59AQI
59AQI
5th June 2025
48AQI
48AQI
6th June 2025
52AQI
52AQI
7th June 2025
57AQI
57AQI
8th June 2025
53AQI
53AQI
9th June 2025
53AQI
53AQI
10th June 2025
55AQI
55AQI
11th June 2025
61AQI
61AQI
12th June 2025
69AQI
69AQI
13th June 2025
64AQI
64AQI
14th June 2025
44AQI
44AQI
15th June 2025
38AQI
38AQI
16th June 2025
39AQI
39AQI
17th June 2025
37AQI
37AQI
18th June 2025
37AQI
37AQI
19th June 2025
28AQI
28AQI
20th June 2025
37AQI
37AQI
21st June 2025
42AQI
42AQI
22nd June 2025
46AQI
46AQI
23rd June 2025
54AQI
54AQI
24th June 2025
54AQI
54AQI
25th June 2025
53AQI
53AQI
26th June 2025
53AQI
53AQI
27th June 2025
46AQI
46AQI
28th June 2025
37AQI
37AQI
29th June 2025
35AQI
35AQI
30th June 2025
31AQI
31AQI
1st July 2025
26AQI
26AQI
2nd July 2025
34AQI
34AQI
3rd July 2025
46AQI
46AQI
4th July 2025
53AQI
53AQI
5th July 2025
68AQI
68AQI
6th July 2025
62AQI
62AQI
7th July 2025
49AQI
49AQI
8th July 2025
55AQI
55AQI
9th July 2025
53AQI
53AQI
10th July 2025
43AQI
43AQI
11th July 2025
44AQI
44AQI
12th July 2025
45AQI
45AQI
13th July 2025
38AQI
38AQI
14th July 2025
33AQI
33AQI
15th July 2025
37AQI
37AQI
16th July 2025
35AQI
35AQI
17th July 2025
30AQI
30AQI
18th July 2025
26AQI
26AQI
19th July 2025
35AQI
35AQI
20th July 2025
36AQI
36AQI
21st July 2025
31AQI
31AQI
22nd July 2025
47AQI
47AQI
23rd July 2025
55AQI
55AQI
24th July 2025
54AQI
54AQI
25th July 2025
50AQI
50AQI
26th July 2025
47AQI
47AQI
27th July 2025
31AQI
31AQI
28th July 2025
30AQI
30AQI
29th July 2025
33AQI
33AQI
30th July 2025
38AQI
38AQI
31st July 2025
44AQI
44AQI
1st August 2025
88AQI
88AQI
2nd August 2025
72AQI
72AQI
3rd August 2025
45AQI
45AQI
4th August 2025
36AQI
36AQI
39AQI
33AQI
29AQI
47AQI
42AQI
60AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202538AQI
5
30
31
16
14
24
7
2
2
108
23
Highest AQI recorded in
August60AQI
Lowest AQI recorded in
May29AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
38AQILeast Polluted Year Recorded
2025(Avg.)
38AQIIllinois 1's annual 2025 AQI (38) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
