Elgin, 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
Elgin, Illinois, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
112AQILowest AQI recorded on
1st Aug 2025
112AQISame Day Analysis (1st August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 112 of Poor air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Elgin, Illinois, United States
AQI
Day
Night
.
5 AM1st Aug 2025
8 PM
4 AM2nd Aug 2025
Day time
Avg. Highest Time
9AM1st Aug
84AQI
Avg. Lowest Time
6PM1st Aug
73AQI
Night time
Avg. Highest Time
10PM1st Aug
75AQI
Avg. Lowest Time
4AM2nd Aug
68AQI
In the last 24 hours,
Elgin's AQI reached its highest point of 84 at 9 AM during the Day, while the lowest point, 68, was recorded at 4 AM during the Night between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Elgin, Illinois, United States
JulAug
03rd - 04th04th - 05th05th - 06th06th - 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
Day
Night
3rd Jul 2025465 AMAQI
3rd Jul 2025476 AMAQI
3rd Jul 2025487 AMAQI
3rd Jul 2025498 AMAQI
3rd Jul 2025489 AMAQI
3rd Jul 20254810 AMAQI
3rd Jul 20254611 AMAQI
3rd Jul 20254612 PMAQI
3rd Jul 2025451 PMAQI
3rd Jul 2025472 PMAQI
3rd Jul 2025473 PMAQI
3rd Jul 2025464 PMAQI
3rd Jul 2025465 PMAQI
3rd Jul 2025476 PMAQI
3rd Jul 2025467 PMAQI
3rd Jul 2025468 PMAQI
3rd Jul 2025449 PMAQI
3rd Jul 20254310 PMAQI
3rd Jul 20254211 PMAQI
4th Jul 20254212 AMAQI
4th Jul 2025461 AMAQI
4th Jul 2025462 AMAQI
4th Jul 2025463 AMAQI
4th Jul 2025464 AMAQI
27°C18/35°C
4th Jul 2025465 AMAQI
4th Jul 2025456 AMAQI
4th Jul 2025447 AMAQI
4th Jul 2025448 AMAQI
4th Jul 2025439 AMAQI
4th Jul 20254310 AMAQI
4th Jul 20254411 AMAQI
4th Jul 20254312 PMAQI
4th Jul 2025441 PMAQI
4th Jul 2025452 PMAQI
4th Jul 2025483 PMAQI
4th Jul 2025504 PMAQI
4th Jul 2025525 PMAQI
4th Jul 2025536 PMAQI
4th Jul 2025487 PMAQI
4th Jul 2025488 PMAQI
4th Jul 2025529 PMAQI
4th Jul 20255410 PMAQI
4th Jul 20255911 PMAQI
5th Jul 20256212 AMAQI
5th Jul 2025641 AMAQI
5th Jul 2025802 AMAQI
5th Jul 2025833 AMAQI
5th Jul 2025794 AMAQI
27°C22/34°C
5th Jul 2025745 AMAQI
5th Jul 2025676 AMAQI
5th Jul 2025687 AMAQI
5th Jul 2025688 AMAQI
5th Jul 2025659 AMAQI
5th Jul 20256310 AMAQI
5th Jul 20256111 AMAQI
5th Jul 20256012 PMAQI
5th Jul 2025601 PMAQI
5th Jul 2025592 PMAQI
5th Jul 2025603 PMAQI
5th Jul 2025614 PMAQI
5th Jul 2025625 PMAQI
5th Jul 2025616 PMAQI
5th Jul 2025627 PMAQI
5th Jul 2025648 PMAQI
5th Jul 2025609 PMAQI
5th Jul 20256110 PMAQI
5th Jul 20256011 PMAQI
6th Jul 20255812 AMAQI
6th Jul 2025561 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025523 AMAQI
6th Jul 2025544 AMAQI
28°C21/36°C
6th Jul 2025555 AMAQI
6th Jul 2025556 AMAQI
6th Jul 2025567 AMAQI
6th Jul 2025568 AMAQI
6th Jul 2025549 AMAQI
6th Jul 20255110 AMAQI
6th Jul 20254911 AMAQI
6th Jul 20254912 PMAQI
6th Jul 2025481 PMAQI
6th Jul 2025502 PMAQI
6th Jul 2025513 PMAQI
6th Jul 2025524 PMAQI
6th Jul 2025505 PMAQI
6th Jul 2025506 PMAQI
6th Jul 2025537 PMAQI
6th Jul 2025518 PMAQI
6th Jul 2025499 PMAQI
6th Jul 20255010 PMAQI
6th Jul 20255111 PMAQI
7th Jul 20255212 AMAQI
7th Jul 2025521 AMAQI
7th Jul 2025512 AMAQI
7th Jul 2025513 AMAQI
7th Jul 2025504 AMAQI
25°C20/30°C
7th Jul 2025505 AMAQI
7th Jul 2025526 AMAQI
7th Jul 2025527 AMAQI
7th Jul 2025538 AMAQI
7th Jul 2025549 AMAQI
7th Jul 20255610 AMAQI
7th Jul 20255811 AMAQI
7th Jul 20256112 PMAQI
7th Jul 2025621 PMAQI
7th Jul 2025622 PMAQI
7th Jul 2025583 PMAQI
7th Jul 2025594 PMAQI
7th Jul 2025575 PMAQI
7th Jul 2025576 PMAQI
7th Jul 2025547 PMAQI
7th Jul 2025558 PMAQI
7th Jul 2025549 PMAQI
7th Jul 20255410 PMAQI
7th Jul 20255411 PMAQI
8th Jul 20255412 AMAQI
8th Jul 2025551 AMAQI
8th Jul 2025552 AMAQI
8th Jul 2025553 AMAQI
8th Jul 2025604 AMAQI
23°C17/31°C
8th Jul 2025565 AMAQI
8th Jul 2025596 AMAQI
8th Jul 2025587 AMAQI
8th Jul 2025598 AMAQI
8th Jul 2025609 AMAQI
8th Jul 20256210 AMAQI
8th Jul 20256011 AMAQI
8th Jul 20256012 PMAQI
8th Jul 2025581 PMAQI
8th Jul 2025592 PMAQI
8th Jul 2025583 PMAQI
8th Jul 2025584 PMAQI
8th Jul 2025555 PMAQI
8th Jul 2025536 PMAQI
8th Jul 2025567 PMAQI
8th Jul 2025578 PMAQI
8th Jul 2025529 PMAQI
8th Jul 20255010 PMAQI
8th Jul 20254811 PMAQI
9th Jul 20254712 AMAQI
9th Jul 2025471 AMAQI
9th Jul 2025382 AMAQI
9th Jul 2025353 AMAQI
9th Jul 2025354 AMAQI
24°C17/31°C
9th Jul 2025355 AMAQI
9th Jul 2025366 AMAQI
9th Jul 2025377 AMAQI
9th Jul 2025388 AMAQI
9th Jul 2025379 AMAQI
9th Jul 20253810 AMAQI
9th Jul 20254011 AMAQI
9th Jul 20254412 PMAQI
9th Jul 2025461 PMAQI
9th Jul 2025442 PMAQI
9th Jul 2025453 PMAQI
9th Jul 2025464 PMAQI
9th Jul 2025465 PMAQI
9th Jul 2025476 PMAQI
9th Jul 2025417 PMAQI
9th Jul 2025408 PMAQI
9th Jul 2025409 PMAQI
9th Jul 20254010 PMAQI
9th Jul 20253711 PMAQI
10th Jul 20253812 AMAQI
10th Jul 2025381 AMAQI
10th Jul 2025362 AMAQI
10th Jul 2025363 AMAQI
10th Jul 2025364 AMAQI
23°C18/31°C
10th Jul 2025365 AMAQI
10th Jul 2025366 AMAQI
10th Jul 2025377 AMAQI
10th Jul 2025378 AMAQI
10th Jul 2025389 AMAQI
10th Jul 20254310 AMAQI
10th Jul 20254811 AMAQI
10th Jul 20255012 PMAQI
10th Jul 2025521 PMAQI
10th Jul 2025522 PMAQI
10th Jul 2025543 PMAQI
10th Jul 2025544 PMAQI
10th Jul 2025545 PMAQI
10th Jul 2025546 PMAQI
10th Jul 2025457 PMAQI
10th Jul 2025438 PMAQI
10th Jul 2025449 PMAQI
10th Jul 20254510 PMAQI
10th Jul 20254811 PMAQI
11th Jul 20254712 AMAQI
11th Jul 2025461 AMAQI
11th Jul 2025422 AMAQI
11th Jul 2025413 AMAQI
11th Jul 2025404 AMAQI
24°C15/34°C
11th Jul 2025425 AMAQI
11th Jul 2025406 AMAQI
11th Jul 2025427 AMAQI
11th Jul 2025438 AMAQI
11th Jul 2025429 AMAQI
11th Jul 20254210 AMAQI
11th Jul 20254211 AMAQI
11th Jul 20254212 PMAQI
11th Jul 2025421 PMAQI
11th Jul 2025442 PMAQI
11th Jul 2025443 PMAQI
11th Jul 2025444 PMAQI
11th Jul 2025445 PMAQI
11th Jul 2025456 PMAQI
11th Jul 2025447 PMAQI
11th Jul 2025448 PMAQI
11th Jul 2025469 PMAQI
11th Jul 20254410 PMAQI
11th Jul 20253911 PMAQI
12th Jul 20253612 AMAQI
12th Jul 2025351 AMAQI
12th Jul 2025302 AMAQI
12th Jul 2025293 AMAQI
12th Jul 2025294 AMAQI
26°C21/34°C
12th Jul 2025315 AMAQI
12th Jul 2025296 AMAQI
12th Jul 2025317 AMAQI
12th Jul 2025318 AMAQI
12th Jul 2025329 AMAQI
12th Jul 20253110 AMAQI
12th Jul 20253411 AMAQI
12th Jul 20253512 PMAQI
12th Jul 2025361 PMAQI
12th Jul 2025362 PMAQI
12th Jul 2025373 PMAQI
12th Jul 2025384 PMAQI
12th Jul 2025405 PMAQI
12th Jul 2025386 PMAQI
12th Jul 2025357 PMAQI
12th Jul 2025348 PMAQI
12th Jul 2025379 PMAQI
12th Jul 20253810 PMAQI
12th Jul 20254011 PMAQI
13th Jul 20254312 AMAQI
13th Jul 2025441 AMAQI
13th Jul 2025462 AMAQI
13th Jul 2025433 AMAQI
13th Jul 2025424 AMAQI
25°C21/30°C
13th Jul 2025425 AMAQI
13th Jul 2025436 AMAQI
13th Jul 2025447 AMAQI
13th Jul 2025448 AMAQI
13th Jul 2025459 AMAQI
13th Jul 20254810 AMAQI
13th Jul 20254911 AMAQI
13th Jul 20255012 PMAQI
13th Jul 2025521 PMAQI
13th Jul 2025512 PMAQI
13th Jul 2025483 PMAQI
13th Jul 2025454 PMAQI
13th Jul 2025445 PMAQI
13th Jul 2025446 PMAQI
13th Jul 2025447 PMAQI
13th Jul 2025418 PMAQI
13th Jul 2025409 PMAQI
13th Jul 20254210 PMAQI
13th Jul 20254111 PMAQI
14th Jul 20254012 AMAQI
14th Jul 2025421 AMAQI
14th Jul 2025502 AMAQI
14th Jul 2025523 AMAQI
14th Jul 2025544 AMAQI
22°C16/28°C
14th Jul 2025535 AMAQI
14th Jul 2025546 AMAQI
14th Jul 2025567 AMAQI
14th Jul 2025578 AMAQI
14th Jul 2025559 AMAQI
14th Jul 20255510 AMAQI
14th Jul 20255611 AMAQI
14th Jul 20255612 PMAQI
14th Jul 2025541 PMAQI
14th Jul 2025552 PMAQI
14th Jul 2025553 PMAQI
14th Jul 2025554 PMAQI
14th Jul 2025555 PMAQI
14th Jul 2025566 PMAQI
14th Jul 2025547 PMAQI
14th Jul 2025538 PMAQI
14th Jul 2025529 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20255011 PMAQI
15th Jul 20255112 AMAQI
15th Jul 2025531 AMAQI
15th Jul 2025552 AMAQI
15th Jul 2025553 AMAQI
15th Jul 2025584 AMAQI
24°C15/32°C
15th Jul 2025585 AMAQI
15th Jul 2025596 AMAQI
15th Jul 2025607 AMAQI
15th Jul 2025628 AMAQI
15th Jul 2025649 AMAQI
15th Jul 20256610 AMAQI
15th Jul 20256611 AMAQI
15th Jul 20256812 PMAQI
15th Jul 2025681 PMAQI
15th Jul 2025682 PMAQI
15th Jul 2025673 PMAQI
15th Jul 2025664 PMAQI
15th Jul 2025645 PMAQI
15th Jul 2025626 PMAQI
15th Jul 2025627 PMAQI
15th Jul 2025618 PMAQI
15th Jul 2025609 PMAQI
15th Jul 20256010 PMAQI
15th Jul 20255811 PMAQI
16th Jul 20255712 AMAQI
16th Jul 2025571 AMAQI
16th Jul 2025542 AMAQI
16th Jul 2025523 AMAQI
16th Jul 2025504 AMAQI
25°C18/33°C
16th Jul 2025505 AMAQI
16th Jul 2025486 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025528 AMAQI
16th Jul 2025539 AMAQI
16th Jul 20255510 AMAQI
16th Jul 20255611 AMAQI
16th Jul 20255712 PMAQI
16th Jul 2025571 PMAQI
16th Jul 2025582 PMAQI
16th Jul 2025583 PMAQI
16th Jul 2025594 PMAQI
16th Jul 2025585 PMAQI
16th Jul 2025566 PMAQI
16th Jul 2025567 PMAQI
16th Jul 2025538 PMAQI
16th Jul 2025529 PMAQI
16th Jul 20255010 PMAQI
16th Jul 20254911 PMAQI
17th Jul 20254812 AMAQI
17th Jul 2025461 AMAQI
17th Jul 2025462 AMAQI
17th Jul 2025453 AMAQI
17th Jul 2025444 AMAQI
27°C22/33°C
17th Jul 2025455 AMAQI
17th Jul 2025446 AMAQI
17th Jul 2025437 AMAQI
17th Jul 2025438 AMAQI
17th Jul 2025439 AMAQI
17th Jul 20254310 AMAQI
17th Jul 20254311 AMAQI
17th Jul 20254412 PMAQI
17th Jul 2025441 PMAQI
17th Jul 2025442 PMAQI
17th Jul 2025443 PMAQI
17th Jul 2025444 PMAQI
17th Jul 2025445 PMAQI
17th Jul 2025446 PMAQI
17th Jul 2025447 PMAQI
17th Jul 2025448 PMAQI
17th Jul 2025429 PMAQI
17th Jul 20254110 PMAQI
17th Jul 20254111 PMAQI
18th Jul 20253912 AMAQI
18th Jul 2025391 AMAQI
18th Jul 2025382 AMAQI
18th Jul 2025373 AMAQI
18th Jul 2025374 AMAQI
19°C15/21°C
18th Jul 2025365 AMAQI
18th Jul 2025366 AMAQI
18th Jul 2025367 AMAQI
18th Jul 2025368 AMAQI
18th Jul 2025349 AMAQI
18th Jul 20253610 AMAQI
18th Jul 20253611 AMAQI
18th Jul 20253412 PMAQI
18th Jul 2025361 PMAQI
18th Jul 2025402 PMAQI
18th Jul 2025393 PMAQI
18th Jul 2025384 PMAQI
18th Jul 2025375 PMAQI
18th Jul 2025386 PMAQI
18th Jul 2025367 PMAQI
18th Jul 2025378 PMAQI
18th Jul 2025379 PMAQI
18th Jul 20253610 PMAQI
18th Jul 20253411 PMAQI
19th Jul 20253212 AMAQI
19th Jul 2025331 AMAQI
19th Jul 2025372 AMAQI
19th Jul 2025403 AMAQI
19th Jul 2025384 AMAQI
20°C12/30°C
19th Jul 2025375 AMAQI
19th Jul 2025356 AMAQI
19th Jul 2025357 AMAQI
19th Jul 2025388 AMAQI
19th Jul 2025419 AMAQI
19th Jul 20254210 AMAQI
19th Jul 20254311 AMAQI
19th Jul 20254312 PMAQI
19th Jul 2025441 PMAQI
19th Jul 2025442 PMAQI
19th Jul 2025433 PMAQI
19th Jul 2025424 PMAQI
19th Jul 2025415 PMAQI
19th Jul 2025406 PMAQI
19th Jul 2025407 PMAQI
19th Jul 2025408 PMAQI
19th Jul 2025369 PMAQI
19th Jul 20253410 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025311 AMAQI
20th Jul 2025302 AMAQI
20th Jul 2025313 AMAQI
20th Jul 2025294 AMAQI
24°C19/28°C
20th Jul 2025295 AMAQI
20th Jul 2025316 AMAQI
20th Jul 2025317 AMAQI
20th Jul 2025338 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20253310 AMAQI
20th Jul 20253211 AMAQI
20th Jul 20253412 PMAQI
20th Jul 2025361 PMAQI
20th Jul 2025382 PMAQI
20th Jul 2025373 PMAQI
20th Jul 2025384 PMAQI
20th Jul 2025385 PMAQI
20th Jul 2025386 PMAQI
20th Jul 2025357 PMAQI
20th Jul 2025368 PMAQI
20th Jul 2025429 PMAQI
20th Jul 20254310 PMAQI
20th Jul 20254211 PMAQI
21st Jul 20254412 AMAQI
21st Jul 2025471 AMAQI
21st Jul 2025572 AMAQI
21st Jul 2025593 AMAQI
21st Jul 2025624 AMAQI
21°C18/22°C
21st Jul 2025645 AMAQI
21st Jul 2025596 AMAQI
21st Jul 2025637 AMAQI
21st Jul 2025668 AMAQI
21st Jul 2025599 AMAQI
21st Jul 20255710 AMAQI
21st Jul 20255811 AMAQI
21st Jul 20256012 PMAQI
21st Jul 2025621 PMAQI
21st Jul 2025632 PMAQI
21st Jul 2025643 PMAQI
21st Jul 2025654 PMAQI
21st Jul 2025655 PMAQI
21st Jul 2025656 PMAQI
21st Jul 2025627 PMAQI
21st Jul 2025628 PMAQI
21st Jul 2025619 PMAQI
21st Jul 20256210 PMAQI
21st Jul 20256211 PMAQI
22nd Jul 20256012 AMAQI
22nd Jul 2025591 AMAQI
22nd Jul 2025582 AMAQI
22nd Jul 2025543 AMAQI
22nd Jul 2025524 AMAQI
22°C15/31°C
22nd Jul 2025515 AMAQI
22nd Jul 2025546 AMAQI
22nd Jul 2025567 AMAQI
22nd Jul 2025548 AMAQI
22nd Jul 2025559 AMAQI
22nd Jul 20255610 AMAQI
22nd Jul 20255911 AMAQI
22nd Jul 20256012 PMAQI
22nd Jul 2025581 PMAQI
22nd Jul 2025582 PMAQI
22nd Jul 2025563 PMAQI
22nd Jul 2025564 PMAQI
22nd Jul 2025565 PMAQI
22nd Jul 2025556 PMAQI
22nd Jul 2025577 PMAQI
22nd Jul 2025558 PMAQI
22nd Jul 2025549 PMAQI
22nd Jul 20255110 PMAQI
22nd Jul 20254911 PMAQI
23rd Jul 20254912 AMAQI
23rd Jul 2025521 AMAQI
23rd Jul 2025522 AMAQI
23rd Jul 2025523 AMAQI
23rd Jul 2025514 AMAQI
26°C17/34°C
23rd Jul 2025515 AMAQI
23rd Jul 2025496 AMAQI
23rd Jul 2025487 AMAQI
23rd Jul 2025478 AMAQI
23rd Jul 2025469 AMAQI
23rd Jul 20254810 AMAQI
23rd Jul 20255011 AMAQI
23rd Jul 20255112 PMAQI
23rd Jul 2025511 PMAQI
23rd Jul 2025512 PMAQI
23rd Jul 2025503 PMAQI
23rd Jul 2025494 PMAQI
23rd Jul 2025485 PMAQI
23rd Jul 2025486 PMAQI
23rd Jul 2025497 PMAQI
23rd Jul 2025488 PMAQI
23rd Jul 2025479 PMAQI
23rd Jul 20254810 PMAQI
23rd Jul 20254411 PMAQI
24th Jul 20254612 AMAQI
24th Jul 2025451 AMAQI
24th Jul 2025442 AMAQI
24th Jul 2025443 AMAQI
24th Jul 2025444 AMAQI
27°C21/33°C
24th Jul 2025455 AMAQI
24th Jul 2025426 AMAQI
24th Jul 2025427 AMAQI
24th Jul 2025438 AMAQI
24th Jul 2025429 AMAQI
24th Jul 20254410 AMAQI
24th Jul 20254411 AMAQI
24th Jul 20254512 PMAQI
24th Jul 2025461 PMAQI
24th Jul 2025472 PMAQI
24th Jul 2025463 PMAQI
24th Jul 2025454 PMAQI
24th Jul 2025435 PMAQI
24th Jul 2025406 PMAQI
24th Jul 2025437 PMAQI
24th Jul 2025438 PMAQI
24th Jul 2025359 PMAQI
24th Jul 20253510 PMAQI
24th Jul 20253411 PMAQI
25th Jul 20253312 AMAQI
25th Jul 2025321 AMAQI
25th Jul 2025282 AMAQI
25th Jul 2025273 AMAQI
25th Jul 2025294 AMAQI
28°C23/33°C
25th Jul 2025265 AMAQI
25th Jul 2025266 AMAQI
25th Jul 2025247 AMAQI
25th Jul 2025258 AMAQI
25th Jul 2025259 AMAQI
25th Jul 20252710 AMAQI
25th Jul 20253111 AMAQI
25th Jul 20253312 PMAQI
25th Jul 2025331 PMAQI
25th Jul 2025342 PMAQI
25th Jul 2025343 PMAQI
25th Jul 2025344 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025336 PMAQI
25th Jul 2025307 PMAQI
25th Jul 2025298 PMAQI
25th Jul 2025309 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20252911 PMAQI
26th Jul 20253112 AMAQI
26th Jul 2025311 AMAQI
26th Jul 2025342 AMAQI
26th Jul 2025343 AMAQI
26th Jul 2025344 AMAQI
26°C22/29°C
26th Jul 2025315 AMAQI
26th Jul 2025296 AMAQI
26th Jul 2025307 AMAQI
26th Jul 2025288 AMAQI
26th Jul 2025279 AMAQI
26th Jul 20252710 AMAQI
26th Jul 20252711 AMAQI
26th Jul 20252812 PMAQI
26th Jul 2025271 PMAQI
26th Jul 2025282 PMAQI
26th Jul 2025283 PMAQI
26th Jul 2025304 PMAQI
26th Jul 2025295 PMAQI
26th Jul 2025306 PMAQI
26th Jul 2025307 PMAQI
26th Jul 2025298 PMAQI
26th Jul 2025329 PMAQI
26th Jul 20253110 PMAQI
26th Jul 20253211 PMAQI
27th Jul 20253412 AMAQI
27th Jul 2025341 AMAQI
27th Jul 2025302 AMAQI
27th Jul 2025323 AMAQI
27th Jul 2025324 AMAQI
25°C22/29°C
27th Jul 2025345 AMAQI
27th Jul 2025346 AMAQI
27th Jul 2025337 AMAQI
27th Jul 2025338 AMAQI
27th Jul 2025339 AMAQI
27th Jul 20253310 AMAQI
27th Jul 20253411 AMAQI
27th Jul 20253312 PMAQI
27th Jul 2025341 PMAQI
27th Jul 2025352 PMAQI
27th Jul 2025353 PMAQI
27th Jul 2025354 PMAQI
27th Jul 2025365 PMAQI
27th Jul 2025356 PMAQI
27th Jul 2025337 PMAQI
27th Jul 2025348 PMAQI
27th Jul 2025349 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253011 PMAQI
28th Jul 20253212 AMAQI
28th Jul 2025371 AMAQI
28th Jul 2025382 AMAQI
28th Jul 2025403 AMAQI
28th Jul 2025384 AMAQI
27°C22/35°C
28th Jul 2025395 AMAQI
28th Jul 2025386 AMAQI
28th Jul 2025407 AMAQI
28th Jul 2025428 AMAQI
28th Jul 2025419 AMAQI
28th Jul 20254310 AMAQI
28th Jul 20254411 AMAQI
28th Jul 20254712 PMAQI
28th Jul 2025491 PMAQI
28th Jul 2025472 PMAQI
28th Jul 2025473 PMAQI
28th Jul 2025474 PMAQI
28th Jul 2025485 PMAQI
28th Jul 2025486 PMAQI
28th Jul 2025447 PMAQI
28th Jul 2025438 PMAQI
28th Jul 2025449 PMAQI
28th Jul 20254510 PMAQI
28th Jul 20254511 PMAQI
29th Jul 20254612 AMAQI
29th Jul 2025481 AMAQI
29th Jul 2025502 AMAQI
29th Jul 2025523 AMAQI
29th Jul 2025514 AMAQI
29°C22/34°C
29th Jul 2025515 AMAQI
29th Jul 2025506 AMAQI
29th Jul 2025497 AMAQI
29th Jul 2025498 AMAQI
29th Jul 2025509 AMAQI
29th Jul 20254910 AMAQI
29th Jul 20255111 AMAQI
29th Jul 20255212 PMAQI
29th Jul 2025521 PMAQI
29th Jul 2025522 PMAQI
29th Jul 2025513 PMAQI
29th Jul 2025514 PMAQI
29th Jul 2025515 PMAQI
29th Jul 2025526 PMAQI
29th Jul 2025507 PMAQI
29th Jul 2025498 PMAQI
29th Jul 2025499 PMAQI
29th Jul 20254810 PMAQI
29th Jul 20254811 PMAQI
30th Jul 20255012 AMAQI
30th Jul 2025501 AMAQI
30th Jul 2025522 AMAQI
30th Jul 2025513 AMAQI
30th Jul 2025514 AMAQI
29°C21/37°C
30th Jul 2025515 AMAQI
30th Jul 2025506 AMAQI
30th Jul 2025507 AMAQI
30th Jul 2025508 AMAQI
30th Jul 2025519 AMAQI
30th Jul 20255110 AMAQI
30th Jul 20255211 AMAQI
30th Jul 20255312 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 2025549 PMAQI
30th Jul 20255310 PMAQI
30th Jul 20255011 PMAQI
31st Jul 20255212 AMAQI
31st Jul 2025551 AMAQI
31st Jul 2025542 AMAQI
31st Jul 2025583 AMAQI
31st Jul 2025644 AMAQI
24°C20/27°C
31st Jul 2025725 AMAQI
31st Jul 2025816 AMAQI
31st Jul 2025957 AMAQI
31st Jul 20251018 AMAQI
31st Jul 20251079 AMAQI
31st Jul 202511510 AMAQI
31st Jul 202511711 AMAQI
31st Jul 202512012 PMAQI
31st Jul 20251161 PMAQI
31st Jul 20251182 PMAQI
31st Jul 20251163 PMAQI
31st Jul 20251144 PMAQI
31st Jul 20251125 PMAQI
31st Jul 20251086 PMAQI
31st Jul 20251057 PMAQI
31st Jul 20251058 PMAQI
31st Jul 2025979 PMAQI
31st Jul 20259410 PMAQI
31st Jul 20258611 PMAQI
1st Aug 20259112 AMAQI
1st Aug 2025801 AMAQI
1st Aug 2025782 AMAQI
1st Aug 2025753 AMAQI
1st Aug 2025724 AMAQI
21°C17/26°C
1st Aug 2025755 AMAQI
1st Aug 2025816 AMAQI
1st Aug 2025817 AMAQI
1st Aug 2025818 AMAQI
1st Aug 2025849 AMAQI
1st Aug 20257810 AMAQI
1st Aug 20257411 AMAQI
1st Aug 20257412 PMAQI
1st Aug 2025751 PMAQI
1st Aug 2025752 PMAQI
1st Aug 2025763 PMAQI
1st Aug 2025744 PMAQI
1st Aug 2025765 PMAQI
1st Aug 2025736 PMAQI
1st Aug 2025767 PMAQI
1st Aug 2025748 PMAQI
1st Aug 2025739 PMAQI
1st Aug 20257510 PMAQI
1st Aug 20257211 PMAQI
2nd Aug 20257212 AMAQI
2nd Aug 2025711 AMAQI
2nd Aug 2025742 AMAQI
2nd Aug 2025683 AMAQI
2nd Aug 2025684 AMAQI
20°C14/25°C
2nd Aug 2025685 AMAQI
5 AM2nd Aug 2025686 AMAQI
2nd Aug 2025687 AMAQI
2nd Aug 2025698 AMAQI
2nd Aug 2025729 AMAQI
2nd Aug 20256710 AMAQI
2nd Aug 20256611 AMAQI
2nd Aug 20256712 PMAQI
12 PM2nd Aug 2025661 PMAQI
2nd Aug 2025632 PMAQI
2nd Aug 2025623 PMAQI
2nd Aug 2025614 PMAQI
2nd Aug 2025655 PMAQI
2nd Aug 2025676 PMAQI
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
50AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
50AQI
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. 50), while the lowest AQI was between 5 AM to 8 PM (Avg. 50).
Night time
Avg. Highest Time
12 AM - 11 PM
48AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
48AQI
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. 48), while the lowest AQI was between 12 AM to 11 PM (Avg. 48).
2025 Days Vs Air Quality
Elgin, Illinois, United States
2025
76%
97
23%
29
2%
2
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
97 DaysModerate
29 DaysPoor
2 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 76%
Health Risk Level:
Low
In 2025, 76% of 214 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
Elgin, 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
48AQI
48AQI
2nd March 2025
44AQI
44AQI
3rd March 2025
34AQI
34AQI
4th March 2025
32AQI
32AQI
5th March 2025
17AQI
17AQI
1st April 2025
23AQI
23AQI
2nd April 2025
36AQI
36AQI
3rd April 2025
25AQI
25AQI
4th April 2025
29AQI
29AQI
5th April 2025
23AQI
23AQI
6th April 2025
24AQI
24AQI
7th April 2025
27AQI
27AQI
8th April 2025
20AQI
20AQI
9th April 2025
35AQI
35AQI
10th April 2025
49AQI
49AQI
11th April 2025
51AQI
51AQI
12th April 2025
52AQI
52AQI
13th April 2025
41AQI
41AQI
14th April 2025
33AQI
33AQI
15th April 2025
18AQI
18AQI
16th April 2025
21AQI
21AQI
17th April 2025
36AQI
36AQI
18th April 2025
52AQI
52AQI
19th April 2025
35AQI
35AQI
20th April 2025
45AQI
45AQI
21st April 2025
20AQI
20AQI
22nd April 2025
31AQI
31AQI
23rd April 2025
25AQI
25AQI
24th April 2025
45AQI
45AQI
25th April 2025
28AQI
28AQI
26th April 2025
19AQI
19AQI
27th April 2025
31AQI
31AQI
28th April 2025
38AQI
38AQI
29th April 2025
36AQI
36AQI
30th April 2025
20AQI
20AQI
1st May 2025
27AQI
27AQI
2nd May 2025
31AQI
31AQI
3rd May 2025
16AQI
16AQI
4th May 2025
19AQI
19AQI
5th May 2025
21AQI
21AQI
6th May 2025
37AQI
37AQI
7th May 2025
37AQI
37AQI
8th May 2025
17AQI
17AQI
9th May 2025
26AQI
26AQI
10th May 2025
36AQI
36AQI
11th May 2025
24AQI
24AQI
12th May 2025
37AQI
37AQI
13th May 2025
38AQI
38AQI
14th May 2025
38AQI
38AQI
15th May 2025
49AQI
49AQI
16th May 2025
30AQI
30AQI
17th May 2025
19AQI
19AQI
18th May 2025
20AQI
20AQI
19th May 2025
17AQI
17AQI
20th May 2025
25AQI
25AQI
21st May 2025
17AQI
17AQI
22nd May 2025
16AQI
16AQI
23rd May 2025
21AQI
21AQI
24th May 2025
22AQI
22AQI
25th May 2025
17AQI
17AQI
26th May 2025
27AQI
27AQI
27th May 2025
23AQI
23AQI
28th May 2025
28AQI
28AQI
29th May 2025
35AQI
35AQI
30th May 2025
44AQI
44AQI
31st May 2025
40AQI
40AQI
1st June 2025
40AQI
40AQI
2nd June 2025
43AQI
43AQI
3rd June 2025
57AQI
57AQI
4th June 2025
58AQI
58AQI
5th June 2025
85AQI
85AQI
6th June 2025
76AQI
76AQI
7th June 2025
81AQI
81AQI
8th June 2025
75AQI
75AQI
9th June 2025
70AQI
70AQI
10th June 2025
61AQI
61AQI
11th June 2025
73AQI
73AQI
12th June 2025
81AQI
81AQI
13th June 2025
73AQI
73AQI
14th June 2025
62AQI
62AQI
15th June 2025
55AQI
55AQI
16th June 2025
55AQI
55AQI
17th June 2025
49AQI
49AQI
18th June 2025
31AQI
31AQI
19th June 2025
29AQI
29AQI
20th June 2025
37AQI
37AQI
21st June 2025
40AQI
40AQI
22nd June 2025
45AQI
45AQI
23rd June 2025
56AQI
56AQI
24th June 2025
36AQI
36AQI
25th June 2025
31AQI
31AQI
26th June 2025
43AQI
43AQI
27th June 2025
28AQI
28AQI
28th June 2025
23AQI
23AQI
29th June 2025
37AQI
37AQI
30th June 2025
32AQI
32AQI
1st July 2025
33AQI
33AQI
2nd July 2025
52AQI
52AQI
3rd July 2025
50AQI
50AQI
4th July 2025
50AQI
50AQI
5th July 2025
70AQI
70AQI
6th July 2025
44AQI
44AQI
7th July 2025
54AQI
54AQI
8th July 2025
63AQI
63AQI
9th July 2025
49AQI
49AQI
10th July 2025
46AQI
46AQI
11th July 2025
36AQI
36AQI
12th July 2025
28AQI
28AQI
13th July 2025
59AQI
59AQI
14th July 2025
73AQI
73AQI
15th July 2025
73AQI
73AQI
16th July 2025
48AQI
48AQI
17th July 2025
26AQI
26AQI
18th July 2025
24AQI
24AQI
19th July 2025
31AQI
31AQI
20th July 2025
26AQI
26AQI
21st July 2025
72AQI
72AQI
22nd July 2025
68AQI
68AQI
23rd July 2025
61AQI
61AQI
24th July 2025
52AQI
52AQI
25th July 2025
29AQI
29AQI
26th July 2025
30AQI
30AQI
27th July 2025
32AQI
32AQI
28th July 2025
38AQI
38AQI
29th July 2025
42AQI
42AQI
30th July 2025
48AQI
48AQI
31st July 2025
131AQI
131AQI
1st August 2025
112AQI
112AQI
35AQI
32AQI
28AQI
52AQI
50AQI
112AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202541AQI
5
27
3
31
15
15
19
11
1
1
97
29
2
Highest AQI recorded in
August112AQI
Lowest AQI recorded in
May28AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
41AQILeast Polluted Year Recorded
2025(Avg.)
41AQIElgin's annual 2025 AQI (41) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
