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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Normal, 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+

September Air Quality Analysis

Normal, Illinois, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
6th Sep 2023
72AQI
Lowest AQI recorded on
23rd Sep 2022
19AQI

Same Day Analysis (25th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 39 of Good air quality, showing improvement over 2023 on the same day.

Day & Night AQI Trend: 25th Sep - 26th Sep 2026

Normal, Illinois, United States

AQI
Day
Night
.

6 AM25th Sep 2026

7 PM

5 AM26th Sep 2026

Day time
Avg. Highest Time
3PM25th Sep

52AQI

Avg. Lowest Time
11AM25th Sep

31AQI

Night time
Avg. Highest Time
4AM26th Sep

51AQI

Avg. Lowest Time
5AM26th Sep

27AQI

In the last 24 hours,

Normal's AQI reached its highest point of 52 at 3 PM during the Day, while the lowest point, 27, was recorded at 5 AM during the Night between 25th Sep and 26th Sep 2026.

Day & Night AQI Trend : Aug - Sep 2026

Normal, Illinois, United States

AugSep
28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th
Day
Night
28th Aug 2026346 AMAQI
28th Aug 2026507 AMAQI
28th Aug 2026528 AMAQI
28th Aug 2026449 AMAQI
28th Aug 20264810 AMAQI
28th Aug 20265111 AMAQI
28th Aug 20265112 PMAQI
28th Aug 2026511 PMAQI
28th Aug 2026522 PMAQI
28th Aug 2026543 PMAQI
28th Aug 2026554 PMAQI
28th Aug 2026535 PMAQI
28th Aug 2026546 PMAQI
28th Aug 2026547 PMAQI
28th Aug 2026528 PMAQI
28th Aug 2026549 PMAQI
28th Aug 20265510 PMAQI
28th Aug 20265811 PMAQI
29th Aug 20265812 AMAQI
29th Aug 2026581 AMAQI
29th Aug 2026562 AMAQI
29th Aug 2026573 AMAQI
29th Aug 2026544 AMAQI
29th Aug 2026505 AMAQI

22°C16/29°C

29th Aug 2026426 AMAQI
29th Aug 2026557 AMAQI
29th Aug 2026548 AMAQI
29th Aug 2026549 AMAQI
29th Aug 20265310 AMAQI
29th Aug 20265411 AMAQI
29th Aug 20265112 PMAQI
29th Aug 2026481 PMAQI
29th Aug 2026442 PMAQI
29th Aug 2026423 PMAQI
29th Aug 2026444 PMAQI
29th Aug 2026425 PMAQI
29th Aug 2026366 PMAQI
29th Aug 2026307 PMAQI
29th Aug 2026408 PMAQI
29th Aug 2026429 PMAQI
29th Aug 20264210 PMAQI
29th Aug 20263811 PMAQI
30th Aug 20264212 AMAQI
30th Aug 2026421 AMAQI
30th Aug 2026382 AMAQI
30th Aug 2026423 AMAQI
30th Aug 2026424 AMAQI
30th Aug 2026535 AMAQI

22°C16/28°C

30th Aug 2026526 AMAQI
30th Aug 2026487 AMAQI
30th Aug 2026488 AMAQI
30th Aug 2026489 AMAQI
30th Aug 20264210 AMAQI
30th Aug 20264611 AMAQI
30th Aug 20264412 PMAQI
30th Aug 2026421 PMAQI
30th Aug 2026442 PMAQI
30th Aug 2026443 PMAQI
30th Aug 2026424 PMAQI
30th Aug 2026445 PMAQI
30th Aug 2026406 PMAQI
30th Aug 2026467 PMAQI
30th Aug 2026428 PMAQI
30th Aug 2026389 PMAQI
30th Aug 20264410 PMAQI
30th Aug 20264411 PMAQI
31st Aug 20264412 AMAQI
31st Aug 2026401 AMAQI
31st Aug 2026442 AMAQI
31st Aug 2026403 AMAQI
31st Aug 2026464 AMAQI
31st Aug 2026445 AMAQI

24°C19/30°C

31st Aug 2026466 AMAQI
31st Aug 2026487 AMAQI
31st Aug 2026468 AMAQI
31st Aug 2026509 AMAQI
31st Aug 20264610 AMAQI
31st Aug 20264611 AMAQI
31st Aug 20264212 PMAQI
31st Aug 2026441 PMAQI
31st Aug 2026462 PMAQI
31st Aug 2026463 PMAQI
31st Aug 2026484 PMAQI
31st Aug 2026485 PMAQI
31st Aug 2026506 PMAQI
31st Aug 2026507 PMAQI
31st Aug 2026508 PMAQI
31st Aug 2026519 PMAQI
31st Aug 20265010 PMAQI
31st Aug 20265211 PMAQI
1st Sep 20265312 AMAQI
1st Sep 2026521 AMAQI
1st Sep 2026522 AMAQI
1st Sep 2026513 AMAQI
1st Sep 2026534 AMAQI
1st Sep 2026525 AMAQI

27°C20/35°C

1st Sep 2026516 AMAQI
1st Sep 2026527 AMAQI
1st Sep 2026508 AMAQI
1st Sep 2026489 AMAQI
1st Sep 20265010 AMAQI
1st Sep 20264811 AMAQI
1st Sep 20264812 PMAQI
1st Sep 2026521 PMAQI
1st Sep 2026482 PMAQI
1st Sep 2026493 PMAQI
1st Sep 2026484 PMAQI
1st Sep 2026505 PMAQI
1st Sep 2026516 PMAQI
1st Sep 2026527 PMAQI
1st Sep 2026528 PMAQI
1st Sep 2026509 PMAQI
1st Sep 20265210 PMAQI
1st Sep 20265011 PMAQI
2nd Sep 20265112 AMAQI
2nd Sep 2026501 AMAQI
2nd Sep 2026512 AMAQI
2nd Sep 2026503 AMAQI
2nd Sep 2026514 AMAQI
2nd Sep 2026485 AMAQI

29°C23/36°C

2nd Sep 2026466 AMAQI
2nd Sep 2026467 AMAQI
2nd Sep 2026448 AMAQI
2nd Sep 2026449 AMAQI
2nd Sep 20264410 AMAQI
2nd Sep 20264011 AMAQI
2nd Sep 20265012 PMAQI
2nd Sep 2026511 PMAQI
2nd Sep 2026512 PMAQI
2nd Sep 2026483 PMAQI
2nd Sep 2026514 PMAQI
2nd Sep 2026535 PMAQI
2nd Sep 2026536 PMAQI
2nd Sep 2026507 PMAQI
2nd Sep 2026558 PMAQI
2nd Sep 2026549 PMAQI
2nd Sep 20265010 PMAQI
2nd Sep 20265011 PMAQI
3rd Sep 20264812 AMAQI
3rd Sep 2026511 AMAQI
3rd Sep 2026502 AMAQI
3rd Sep 2026483 AMAQI
3rd Sep 2026464 AMAQI
3rd Sep 2026445 AMAQI

29°C23/36°C

3rd Sep 2026446 AMAQI
3rd Sep 2026447 AMAQI
3rd Sep 2026448 AMAQI
3rd Sep 2026489 AMAQI
3rd Sep 20265110 AMAQI
3rd Sep 20264911 AMAQI
3rd Sep 20264812 PMAQI
3rd Sep 2026481 PMAQI
3rd Sep 2026442 PMAQI
3rd Sep 2026443 PMAQI
3rd Sep 2026404 PMAQI
3rd Sep 2026465 PMAQI
3rd Sep 2026486 PMAQI
3rd Sep 2026447 PMAQI
3rd Sep 2026488 PMAQI
3rd Sep 2026469 PMAQI
3rd Sep 20264410 PMAQI
3rd Sep 20264611 PMAQI
4th Sep 20264812 AMAQI
4th Sep 2026481 AMAQI
4th Sep 2026512 AMAQI
4th Sep 2026483 AMAQI
4th Sep 2026484 AMAQI
4th Sep 2026465 AMAQI

30°C24/36°C

4th Sep 2026406 AMAQI
4th Sep 2026487 AMAQI
4th Sep 2026508 AMAQI
4th Sep 2026489 AMAQI
4th Sep 20264410 AMAQI
4th Sep 20264411 AMAQI
4th Sep 20264812 PMAQI
4th Sep 2026461 PMAQI
4th Sep 2026462 PMAQI
4th Sep 2026463 PMAQI
4th Sep 2026464 PMAQI
4th Sep 2026485 PMAQI
4th Sep 2026516 PMAQI
4th Sep 2026537 PMAQI
4th Sep 2026518 PMAQI
4th Sep 2026509 PMAQI
4th Sep 20264610 PMAQI
4th Sep 20264611 PMAQI
5th Sep 20264212 AMAQI
5th Sep 2026421 AMAQI
5th Sep 2026422 AMAQI
5th Sep 2026403 AMAQI
5th Sep 2026404 AMAQI
5th Sep 2026425 AMAQI

30°C24/36°C

5th Sep 2026426 AMAQI
5th Sep 2026467 AMAQI
5th Sep 2026508 AMAQI
5th Sep 2026489 AMAQI
5th Sep 20264610 AMAQI
5th Sep 20264611 AMAQI
5th Sep 20264812 PMAQI
5th Sep 2026391 PMAQI
5th Sep 2026422 PMAQI
5th Sep 2026443 PMAQI
5th Sep 2026484 PMAQI
5th Sep 2026465 PMAQI
5th Sep 2026486 PMAQI
5th Sep 2026427 PMAQI
5th Sep 2026328 PMAQI
5th Sep 2026329 PMAQI
5th Sep 20263310 PMAQI
5th Sep 20263811 PMAQI
6th Sep 20264212 AMAQI
6th Sep 2026441 AMAQI
6th Sep 2026422 AMAQI
6th Sep 2026463 AMAQI
6th Sep 2026504 AMAQI
6th Sep 2026485 AMAQI

29°C23/36°C

6th Sep 2026426 AMAQI
6th Sep 2026427 AMAQI
6th Sep 2026428 AMAQI
6th Sep 2026429 AMAQI
6th Sep 20264810 AMAQI
6th Sep 20264611 AMAQI
6th Sep 20264012 PMAQI
6th Sep 2026461 PMAQI
6th Sep 2026462 PMAQI
6th Sep 2026483 PMAQI
6th Sep 2026464 PMAQI
6th Sep 2026485 PMAQI
6th Sep 2026406 PMAQI
6th Sep 2026707 PMAQI
6th Sep 2026368 PMAQI
6th Sep 2026369 PMAQI
6th Sep 20264010 PMAQI
6th Sep 20264011 PMAQI
7th Sep 20265512 AMAQI
7th Sep 2026511 AMAQI
7th Sep 2026402 AMAQI
7th Sep 2026403 AMAQI
7th Sep 2026324 AMAQI
7th Sep 2026275 AMAQI

24°C19/30°C

7th Sep 2026366 AMAQI
7th Sep 2026407 AMAQI
7th Sep 2026538 AMAQI
7th Sep 2026469 AMAQI
7th Sep 20263310 AMAQI
7th Sep 20262911 AMAQI
7th Sep 20262812 PMAQI
7th Sep 2026291 PMAQI
7th Sep 2026252 PMAQI
7th Sep 2026233 PMAQI
7th Sep 2026274 PMAQI
7th Sep 2026295 PMAQI
7th Sep 2026276 PMAQI
7th Sep 2026427 PMAQI
7th Sep 2026428 PMAQI
7th Sep 2026429 PMAQI
7th Sep 20265010 PMAQI
7th Sep 20264411 PMAQI
8th Sep 20263812 AMAQI
8th Sep 2026401 AMAQI
8th Sep 2026462 AMAQI
8th Sep 2026363 AMAQI
8th Sep 2026404 AMAQI
8th Sep 2026385 AMAQI

21°C15/29°C

8th Sep 2026376 AMAQI
8th Sep 2026347 AMAQI
8th Sep 2026448 AMAQI
8th Sep 2026389 AMAQI
8th Sep 20263010 AMAQI
8th Sep 20263811 AMAQI
8th Sep 20263212 PMAQI
8th Sep 2026421 PMAQI
8th Sep 2026342 PMAQI
8th Sep 2026383 PMAQI
8th Sep 2026384 PMAQI
8th Sep 2026325 PMAQI
8th Sep 2026236 PMAQI
8th Sep 2026287 PMAQI
8th Sep 2026388 PMAQI
8th Sep 2026469 PMAQI
8th Sep 20265210 PMAQI
8th Sep 20262611 PMAQI
9th Sep 20264612 AMAQI
9th Sep 2026401 AMAQI
9th Sep 2026422 AMAQI
9th Sep 2026423 AMAQI
9th Sep 2026424 AMAQI
9th Sep 2026425 AMAQI

24°C16/32°C

9th Sep 2026426 AMAQI
9th Sep 2026427 AMAQI
9th Sep 2026588 AMAQI
9th Sep 2026609 AMAQI
9th Sep 20265210 AMAQI
9th Sep 20264211 AMAQI
9th Sep 20264212 PMAQI
9th Sep 2026381 PMAQI
9th Sep 2026502 PMAQI
9th Sep 2026223 PMAQI
9th Sep 2026384 PMAQI
9th Sep 2026505 PMAQI
9th Sep 2026526 PMAQI
9th Sep 2026407 PMAQI
9th Sep 2026248 PMAQI
9th Sep 2026429 PMAQI
9th Sep 20264210 PMAQI
9th Sep 20265011 PMAQI
10th Sep 20264612 AMAQI
10th Sep 2026441 AMAQI
10th Sep 2026422 AMAQI
10th Sep 2026463 AMAQI
10th Sep 2026304 AMAQI
10th Sep 2026385 AMAQI

23°C21/27°C

10th Sep 2026196 AMAQI
10th Sep 2026427 AMAQI
10th Sep 2026268 AMAQI
10th Sep 2026509 AMAQI
10th Sep 20264210 AMAQI
10th Sep 20261911 AMAQI
10th Sep 20262812 PMAQI
10th Sep 2026421 PMAQI
10th Sep 2026462 PMAQI
10th Sep 2026303 PMAQI
10th Sep 2026324 PMAQI
10th Sep 2026255 PMAQI
10th Sep 2026256 PMAQI
10th Sep 2026257 PMAQI
10th Sep 2026428 PMAQI
10th Sep 2026409 PMAQI
10th Sep 20264010 PMAQI
10th Sep 20263411 PMAQI
11th Sep 20263312 AMAQI
11th Sep 2026311 AMAQI
11th Sep 2026442 AMAQI
11th Sep 2026323 AMAQI
11th Sep 2026364 AMAQI
11th Sep 2026405 AMAQI

21°C19/24°C

11th Sep 2026446 AMAQI
11th Sep 2026387 AMAQI
11th Sep 2026368 AMAQI
11th Sep 2026389 AMAQI
11th Sep 20263810 AMAQI
11th Sep 20264211 AMAQI
11th Sep 20262112 PMAQI
11th Sep 2026381 PMAQI
11th Sep 2026382 PMAQI
11th Sep 2026423 PMAQI
11th Sep 2026384 PMAQI
11th Sep 2026425 PMAQI
11th Sep 2026336 PMAQI
11th Sep 2026427 PMAQI
11th Sep 2026518 PMAQI
11th Sep 2026429 PMAQI
11th Sep 20263310 PMAQI
11th Sep 20265011 PMAQI
12th Sep 20264212 AMAQI
12th Sep 2026381 AMAQI
12th Sep 2026482 AMAQI
12th Sep 2026503 AMAQI
12th Sep 2026464 AMAQI
12th Sep 2026465 AMAQI

21°C15/27°C

12th Sep 2026506 AMAQI
12th Sep 2026467 AMAQI
12th Sep 2026368 AMAQI
12th Sep 2026409 AMAQI
12th Sep 20264210 AMAQI
12th Sep 20263211 AMAQI
12th Sep 20264412 PMAQI
12th Sep 2026441 PMAQI
12th Sep 2026422 PMAQI
12th Sep 2026384 PMAQI
12th Sep 2026465 PMAQI
12th Sep 2026346 PMAQI
12th Sep 2026617 PMAQI
12th Sep 2026528 PMAQI
12th Sep 2026519 PMAQI
12th Sep 20265010 PMAQI
12th Sep 20264611 PMAQI
13th Sep 20264412 AMAQI
13th Sep 2026421 AMAQI
13th Sep 2026422 AMAQI
13th Sep 2026403 AMAQI
13th Sep 2026424 AMAQI
13th Sep 2026745 AMAQI

24°C18/32°C

13th Sep 2026386 AMAQI
13th Sep 2026297 AMAQI
13th Sep 2026298 AMAQI
13th Sep 2026569 AMAQI
13th Sep 20263810 AMAQI
13th Sep 20264211 AMAQI
13th Sep 20265212 PMAQI
13th Sep 2026401 PMAQI
13th Sep 2026342 PMAQI
13th Sep 2026323 PMAQI
13th Sep 2026534 PMAQI
13th Sep 2026335 PMAQI
13th Sep 2026386 PMAQI
13th Sep 2026227 PMAQI
13th Sep 2026428 PMAQI
13th Sep 2026409 PMAQI
13th Sep 20263810 PMAQI
13th Sep 20263411 PMAQI
14th Sep 20261712 AMAQI
14th Sep 2026221 AMAQI
14th Sep 2026262 AMAQI
14th Sep 2026273 AMAQI
14th Sep 2026254 AMAQI
14th Sep 2026275 AMAQI

19°C16/23°C

14th Sep 2026466 AMAQI
14th Sep 2026207 AMAQI
14th Sep 2026268 AMAQI
14th Sep 2026339 AMAQI
14th Sep 20262110 AMAQI
14th Sep 20262511 AMAQI
14th Sep 20262512 PMAQI
14th Sep 2026471 PMAQI
14th Sep 2026392 PMAQI
14th Sep 2026333 PMAQI
14th Sep 2026254 PMAQI
14th Sep 2026585 PMAQI
14th Sep 2026266 PMAQI
14th Sep 2026427 PMAQI
14th Sep 2026428 PMAQI
14th Sep 2026219 PMAQI
14th Sep 20264610 PMAQI
14th Sep 20263911 PMAQI
15th Sep 20263012 AMAQI
15th Sep 2026181 AMAQI
15th Sep 2026232 AMAQI
15th Sep 2026403 AMAQI
15th Sep 2026344 AMAQI
15th Sep 2026425 AMAQI

18°C13/23°C

15th Sep 2026406 AMAQI
15th Sep 2026447 AMAQI
15th Sep 2026308 AMAQI
15th Sep 2026449 AMAQI
15th Sep 20263810 AMAQI
15th Sep 20265011 AMAQI
15th Sep 20264412 PMAQI
15th Sep 2026461 PMAQI
15th Sep 2026482 PMAQI
15th Sep 2026463 PMAQI
15th Sep 2026484 PMAQI
15th Sep 2026485 PMAQI
15th Sep 2026466 PMAQI
15th Sep 2026487 PMAQI
15th Sep 2026428 PMAQI
15th Sep 2026369 PMAQI
15th Sep 20264010 PMAQI
15th Sep 20262611 PMAQI
16th Sep 20262612 AMAQI
16th Sep 2026461 AMAQI
16th Sep 2026422 AMAQI
16th Sep 2026543 AMAQI
16th Sep 2026464 AMAQI
16th Sep 2026425 AMAQI

25°C21/32°C

16th Sep 2026466 AMAQI
16th Sep 2026427 AMAQI
16th Sep 2026428 AMAQI
16th Sep 2026489 AMAQI
16th Sep 20264210 AMAQI
16th Sep 20262711 AMAQI
16th Sep 20265612 PMAQI
16th Sep 2026341 PMAQI
16th Sep 2026302 PMAQI
16th Sep 2026403 PMAQI
16th Sep 2026524 PMAQI
16th Sep 2026505 PMAQI
16th Sep 2026506 PMAQI
16th Sep 2026367 PMAQI
16th Sep 2026348 PMAQI
16th Sep 2026429 PMAQI
16th Sep 20264210 PMAQI
16th Sep 20264211 PMAQI
17th Sep 20264212 AMAQI
17th Sep 2026481 AMAQI
17th Sep 2026512 AMAQI
17th Sep 2026523 AMAQI
17th Sep 2026564 AMAQI
17th Sep 2026585 AMAQI

23°C20/29°C

17th Sep 2026566 AMAQI
17th Sep 2026537 AMAQI
17th Sep 2026508 AMAQI
17th Sep 2026469 AMAQI
17th Sep 20264810 AMAQI
17th Sep 20264811 AMAQI
17th Sep 20265012 PMAQI
17th Sep 2026511 PMAQI
17th Sep 2026522 PMAQI
17th Sep 2026533 PMAQI
17th Sep 2026524 PMAQI
17th Sep 2026515 PMAQI
17th Sep 2026516 PMAQI
17th Sep 2026527 PMAQI
17th Sep 2026528 PMAQI
17th Sep 2026529 PMAQI
17th Sep 20265310 PMAQI
17th Sep 20265211 PMAQI
18th Sep 20264612 AMAQI
18th Sep 2026481 AMAQI
18th Sep 2026422 AMAQI
18th Sep 2026423 AMAQI
18th Sep 2026444 AMAQI
18th Sep 2026445 AMAQI

25°C20/31°C

18th Sep 2026426 AMAQI
18th Sep 2026487 AMAQI
18th Sep 2026448 AMAQI
18th Sep 2026429 AMAQI
18th Sep 20264010 AMAQI
18th Sep 20264811 AMAQI
18th Sep 20264412 PMAQI
18th Sep 2026441 PMAQI
18th Sep 2026512 PMAQI
18th Sep 2026503 PMAQI
18th Sep 2026494 PMAQI
18th Sep 2026495 PMAQI
18th Sep 2026406 PMAQI
18th Sep 2026567 PMAQI
18th Sep 2026588 PMAQI
18th Sep 2026549 PMAQI
18th Sep 20265010 PMAQI
18th Sep 20265211 PMAQI
19th Sep 20265212 AMAQI
19th Sep 2026501 AMAQI
19th Sep 2026502 AMAQI
19th Sep 2026303 AMAQI
19th Sep 2026504 AMAQI
19th Sep 2026505 AMAQI

21°C17/23°C

19th Sep 2026506 AMAQI
19th Sep 2026527 AMAQI
19th Sep 2026268 AMAQI
19th Sep 2026429 AMAQI
19th Sep 20264210 AMAQI
19th Sep 20264811 AMAQI
19th Sep 20264612 PMAQI
19th Sep 2026461 PMAQI
19th Sep 2026442 PMAQI
19th Sep 2026463 PMAQI
19th Sep 2026464 PMAQI
19th Sep 2026515 PMAQI
19th Sep 2026446 PMAQI
19th Sep 2026507 PMAQI
19th Sep 2026518 PMAQI
19th Sep 2026519 PMAQI
19th Sep 20264810 PMAQI
19th Sep 20265011 PMAQI
20th Sep 20264412 AMAQI
20th Sep 2026421 AMAQI
20th Sep 2026422 AMAQI
20th Sep 2026443 AMAQI
20th Sep 2026464 AMAQI
20th Sep 2026485 AMAQI

23°C19/26°C

20th Sep 2026466 AMAQI
20th Sep 2026537 AMAQI
20th Sep 2026508 AMAQI
20th Sep 2026529 AMAQI
20th Sep 20264210 AMAQI
20th Sep 20264611 AMAQI
20th Sep 20264212 PMAQI
20th Sep 2026481 PMAQI
20th Sep 2026522 PMAQI
20th Sep 2026493 PMAQI
20th Sep 2026464 PMAQI
20th Sep 2026385 PMAQI
20th Sep 2026386 PMAQI
20th Sep 2026507 PMAQI
20th Sep 2026508 PMAQI
20th Sep 2026389 PMAQI
20th Sep 20263210 PMAQI
20th Sep 20263411 PMAQI
21st Sep 20264612 AMAQI
21st Sep 2026461 AMAQI
21st Sep 2026372 AMAQI
21st Sep 2026303 AMAQI
21st Sep 2026464 AMAQI
21st Sep 2026505 AMAQI

21°C16/24°C

21st Sep 2026266 AMAQI
21st Sep 2026307 AMAQI
21st Sep 2026308 AMAQI
21st Sep 2026269 AMAQI
21st Sep 20263210 AMAQI
21st Sep 20262611 AMAQI
21st Sep 20262612 PMAQI
21st Sep 2026221 PMAQI
21st Sep 2026222 PMAQI
21st Sep 2026223 PMAQI
21st Sep 2026244 PMAQI
21st Sep 2026305 PMAQI
21st Sep 2026286 PMAQI
21st Sep 2026347 PMAQI
21st Sep 2026308 PMAQI
21st Sep 2026389 PMAQI
21st Sep 20263810 PMAQI
21st Sep 20264211 PMAQI
22nd Sep 20262812 AMAQI
22nd Sep 2026281 AMAQI
22nd Sep 2026292 AMAQI
22nd Sep 2026263 AMAQI
22nd Sep 2026254 AMAQI
22nd Sep 2026525 AMAQI

15°C14/16°C

22nd Sep 2026636 AMAQI
22nd Sep 2026487 AMAQI
22nd Sep 2026268 AMAQI
22nd Sep 2026289 AMAQI
22nd Sep 20263210 AMAQI
22nd Sep 20264211 AMAQI
22nd Sep 20263612 PMAQI
22nd Sep 2026181 PMAQI
22nd Sep 2026422 PMAQI
22nd Sep 2026383 PMAQI
22nd Sep 2026334 PMAQI
22nd Sep 2026245 PMAQI
22nd Sep 2026226 PMAQI
22nd Sep 2026227 PMAQI
22nd Sep 2026468 PMAQI
22nd Sep 2026499 PMAQI
22nd Sep 20265810 PMAQI
22nd Sep 20263811 PMAQI
23rd Sep 2026812 AMAQI
23rd Sep 202681 AMAQI
23rd Sep 2026222 AMAQI
23rd Sep 2026263 AMAQI
23rd Sep 2026264 AMAQI
23rd Sep 2026125 AMAQI

14°C11/17°C

23rd Sep 2026196 AMAQI
23rd Sep 2026267 AMAQI
23rd Sep 2026288 AMAQI
23rd Sep 2026289 AMAQI
23rd Sep 20263010 AMAQI
23rd Sep 20262811 AMAQI
23rd Sep 20262012 PMAQI
23rd Sep 202691 PMAQI
23rd Sep 2026182 PMAQI
23rd Sep 2026213 PMAQI
23rd Sep 2026264 PMAQI
23rd Sep 2026175 PMAQI
23rd Sep 2026256 PMAQI
23rd Sep 2026237 PMAQI
23rd Sep 2026268 PMAQI
23rd Sep 2026239 PMAQI
23rd Sep 20265010 PMAQI
23rd Sep 20263411 PMAQI
24th Sep 20262712 AMAQI
24th Sep 2026251 AMAQI
24th Sep 2026282 AMAQI
24th Sep 2026283 AMAQI
24th Sep 2026284 AMAQI
24th Sep 2026255 AMAQI

15°C13/19°C

24th Sep 2026266 AMAQI
24th Sep 2026297 AMAQI
24th Sep 2026308 AMAQI
24th Sep 2026309 AMAQI
24th Sep 20264010 AMAQI
24th Sep 20263811 AMAQI
24th Sep 20264012 PMAQI
24th Sep 2026421 PMAQI
24th Sep 2026292 PMAQI
24th Sep 2026213 PMAQI
24th Sep 2026294 PMAQI
24th Sep 2026295 PMAQI
24th Sep 2026386 PMAQI
24th Sep 2026207 PMAQI
24th Sep 2026258 PMAQI
24th Sep 2026169 PMAQI
24th Sep 20264210 PMAQI
24th Sep 20264411 PMAQI
25th Sep 20265112 AMAQI
25th Sep 2026421 AMAQI
25th Sep 2026342 AMAQI
25th Sep 2026343 AMAQI
25th Sep 2026254 AMAQI
25th Sep 2026315 AMAQI

17°C12/22°C

25th Sep 2026366 AMAQI
25th Sep 2026367 AMAQI
25th Sep 2026408 AMAQI
25th Sep 2026329 AMAQI
25th Sep 20265110 AMAQI
25th Sep 20263111 AMAQI
25th Sep 20264412 PMAQI
25th Sep 2026381 PMAQI
25th Sep 2026422 PMAQI
25th Sep 2026523 PMAQI
25th Sep 2026464 PMAQI
25th Sep 2026425 PMAQI
25th Sep 2026386 PMAQI
25th Sep 2026387 PMAQI
25th Sep 2026328 PMAQI
25th Sep 2026329 PMAQI
25th Sep 20263810 PMAQI
25th Sep 20265011 PMAQI
26th Sep 20263612 AMAQI
26th Sep 2026401 AMAQI
26th Sep 2026272 AMAQI
26th Sep 2026303 AMAQI
26th Sep 2026514 AMAQI
26th Sep 2026275 AMAQI

16°C14/19°C

26th Sep 2026426 AMAQI
6 AM
26th Sep 2026407 AMAQI
26th Sep 2026558 AMAQI
26th Sep 2026409 AMAQI
26th Sep 20265010 AMAQI
26th Sep 20264611 AMAQI
26th Sep 20264212 PMAQI
12 PM
26th Sep 2026481 PMAQI
26th Sep 2026462 PMAQI
26th Sep 2026503 PMAQI
26th Sep 2026444 PMAQI
26th Sep 2026365 PMAQI
26th Sep 2026446 PMAQI
7 PM
12 AM
5 AM

16°C12/20°C

Day time
Avg. Highest Time
9 AM - 2 PM

42AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
3 PM

40AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 2 PM (Avg. 42), while the lowest AQI was between 3 PM to 3 PM (Avg. 40).
Night time
Avg. Highest Time
10 PM

45AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 4 AM

41AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 10 PM (Avg. 45), while the lowest AQI was between 12 AM to 4 AM (Avg. 41).

2026 Days Vs Air Quality

Normal, Illinois, United States

2026

90%

238

10%

27

Total number of days with different AQI categories in last 269 days in 2026 (96 days remaining)

Good
238 Days
Moderate
27 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 90%

Health Risk Level:

Very Low

In 2026, 90% of 269 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Normal, Illinois, United States

AQI levels in 2026

AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
18AQI (US)
2nd January 2026
24AQI (US)
3rd January 2026
28AQI (US)
4th January 2026
44AQI (US)
5th January 2026
48AQI (US)
6th January 2026
54AQI (US)
7th January 2026
50AQI (US)
8th January 2026
41AQI (US)
9th January 2026
25AQI (US)
10th January 2026
23AQI (US)
11th January 2026
18AQI (US)
12th January 2026
22AQI (US)
13th January 2026
24AQI (US)
14th January 2026
11AQI (US)
15th January 2026
10AQI (US)
16th January 2026
20AQI (US)
17th January 2026
12AQI (US)
18th January 2026
13AQI (US)
19th January 2026
23AQI (US)
20th January 2026
16AQI (US)
21st January 2026
36AQI (US)
22nd January 2026
59AQI (US)
23rd January 2026
57AQI (US)
24th January 2026
49AQI (US)
25th January 2026
52AQI (US)
26th January 2026
48AQI (US)
27th January 2026
37AQI (US)
28th January 2026
44AQI (US)
29th January 2026
53AQI (US)
30th January 2026
62AQI (US)
31st January 2026
42AQI (US)
1st February 2026
46AQI (US)
2nd February 2026
51AQI (US)
3rd February 2026
48AQI (US)
4th February 2026
44AQI (US)
5th February 2026
50AQI (US)
6th February 2026
46AQI (US)
7th February 2026
40AQI (US)
8th February 2026
43AQI (US)
9th February 2026
47AQI (US)
10th February 2026
46AQI (US)
11th February 2026
39AQI (US)
12th February 2026
38AQI (US)
13th February 2026
49AQI (US)
14th February 2026
50AQI (US)
15th February 2026
48AQI (US)
16th February 2026
45AQI (US)
17th February 2026
50AQI (US)
18th February 2026
45AQI (US)
19th February 2026
42AQI (US)
20th February 2026
39AQI (US)
21st February 2026
37AQI (US)
22nd February 2026
38AQI (US)
23rd February 2026
38AQI (US)
24th February 2026
46AQI (US)
25th February 2026
44AQI (US)
26th February 2026
34AQI (US)
27th February 2026
34AQI (US)
28th February 2026
33AQI (US)
1st March 2026
38AQI (US)
2nd March 2026
56AQI (US)
3rd March 2026
44AQI (US)
4th March 2026
46AQI (US)
5th March 2026
44AQI (US)
6th March 2026
39AQI (US)
7th March 2026
36AQI (US)
8th March 2026
40AQI (US)
9th March 2026
35AQI (US)
10th March 2026
35AQI (US)
11th March 2026
41AQI (US)
12th March 2026
38AQI (US)
13th March 2026
40AQI (US)
14th March 2026
36AQI (US)
15th March 2026
32AQI (US)
16th March 2026
36AQI (US)
17th March 2026
34AQI (US)
18th March 2026
31AQI (US)
19th March 2026
40AQI (US)
20th March 2026
43AQI (US)
21st March 2026
38AQI (US)
22nd March 2026
33AQI (US)
23rd March 2026
40AQI (US)
24th March 2026
36AQI (US)
25th March 2026
31AQI (US)
26th March 2026
30AQI (US)
27th March 2026
30AQI (US)
28th March 2026
30AQI (US)
29th March 2026
30AQI (US)
30th March 2026
28AQI (US)
31st March 2026
26AQI (US)
1st April 2026
30AQI (US)
2nd April 2026
30AQI (US)
3rd April 2026
28AQI (US)
4th April 2026
31AQI (US)
5th April 2026
29AQI (US)
6th April 2026
30AQI (US)
7th April 2026
28AQI (US)
8th April 2026
39AQI (US)
9th April 2026
29AQI (US)
10th April 2026
33AQI (US)
11th April 2026
29AQI (US)
12th April 2026
30AQI (US)
13th April 2026
32AQI (US)
14th April 2026
32AQI (US)
15th April 2026
33AQI (US)
16th April 2026
30AQI (US)
17th April 2026
18th April 2026
30AQI (US)
19th April 2026
32AQI (US)
20th April 2026
29AQI (US)
21st April 2026
27AQI (US)
22nd April 2026
23rd April 2026
24AQI (US)
24th April 2026
25AQI (US)
25th April 2026
28AQI (US)
26th April 2026
34AQI (US)
27th April 2026
26AQI (US)
28th April 2026
26AQI (US)
29th April 2026
26AQI (US)
30th April 2026
28AQI (US)
1st May 2026
26AQI (US)
2nd May 2026
24AQI (US)
3rd May 2026
22AQI (US)
4th May 2026
36AQI (US)
5th May 2026
38AQI (US)
6th May 2026
30AQI (US)
7th May 2026
27AQI (US)
8th May 2026
35AQI (US)
9th May 2026
10th May 2026
30AQI (US)
11th May 2026
28AQI (US)
12th May 2026
31AQI (US)
13th May 2026
29AQI (US)
14th May 2026
25AQI (US)
15th May 2026
47AQI (US)
16th May 2026
51AQI (US)
17th May 2026
57AQI (US)
18th May 2026
57AQI (US)
19th May 2026
56AQI (US)
20th May 2026
50AQI (US)
21st May 2026
43AQI (US)
22nd May 2026
44AQI (US)
23rd May 2026
49AQI (US)
24th May 2026
46AQI (US)
25th May 2026
44AQI (US)
26th May 2026
32AQI (US)
27th May 2026
27AQI (US)
28th May 2026
17AQI (US)
29th May 2026
23AQI (US)
30th May 2026
25AQI (US)
31st May 2026
27AQI (US)
1st June 2026
29AQI (US)
2nd June 2026
24AQI (US)
3rd June 2026
21AQI (US)
4th June 2026
26AQI (US)
5th June 2026
31AQI (US)
6th June 2026
31AQI (US)
7th June 2026
28AQI (US)
8th June 2026
32AQI (US)
9th June 2026
28AQI (US)
10th June 2026
27AQI (US)
11th June 2026
26AQI (US)
12th June 2026
25AQI (US)
13th June 2026
22AQI (US)
14th June 2026
23AQI (US)
15th June 2026
24AQI (US)
16th June 2026
26AQI (US)
17th June 2026
27AQI (US)
18th June 2026
27AQI (US)
19th June 2026
24AQI (US)
20th June 2026
24AQI (US)
21st June 2026
24AQI (US)
22nd June 2026
24AQI (US)
23rd June 2026
19AQI (US)
24th June 2026
24AQI (US)
25th June 2026
25AQI (US)
26th June 2026
25AQI (US)
27th June 2026
33AQI (US)
28th June 2026
34AQI (US)
29th June 2026
35AQI (US)
30th June 2026
39AQI (US)
1st July 2026
28AQI (US)
2nd July 2026
29AQI (US)
3rd July 2026
30AQI (US)
4th July 2026
37AQI (US)
5th July 2026
50AQI (US)
6th July 2026
52AQI (US)
7th July 2026
48AQI (US)
8th July 2026
52AQI (US)
9th July 2026
37AQI (US)
10th July 2026
37AQI (US)
11th July 2026
46AQI (US)
12th July 2026
48AQI (US)
13th July 2026
51AQI (US)
14th July 2026
39AQI (US)
15th July 2026
54AQI (US)
16th July 2026
90AQI (US)
17th July 2026
46AQI (US)
18th July 2026
47AQI (US)
19th July 2026
72AQI (US)
20th July 2026
75AQI (US)
21st July 2026
53AQI (US)
22nd July 2026
42AQI (US)
23rd July 2026
39AQI (US)
24th July 2026
41AQI (US)
25th July 2026
49AQI (US)
26th July 2026
51AQI (US)
27th July 2026
53AQI (US)
28th July 2026
50AQI (US)
29th July 2026
37AQI (US)
30th July 2026
40AQI (US)
31st July 2026
40AQI (US)
1st August 2026
40AQI (US)
2nd August 2026
45AQI (US)
3rd August 2026
46AQI (US)
4th August 2026
45AQI (US)
5th August 2026
46AQI (US)
6th August 2026
46AQI (US)
7th August 2026
46AQI (US)
8th August 2026
47AQI (US)
9th August 2026
47AQI (US)
10th August 2026
47AQI (US)
11th August 2026
44AQI (US)
12th August 2026
42AQI (US)
13th August 2026
45AQI (US)
14th August 2026
56AQI (US)
15th August 2026
46AQI (US)
16th August 2026
42AQI (US)
17th August 2026
22AQI (US)
18th August 2026
43AQI (US)
19th August 2026
45AQI (US)
20th August 2026
45AQI (US)
21st August 2026
50AQI (US)
22nd August 2026
43AQI (US)
23rd August 2026
48AQI (US)
24th August 2026
57AQI (US)
25th August 2026
55AQI (US)
26th August 2026
47AQI (US)
27th August 2026
42AQI (US)
28th August 2026
50AQI (US)
29th August 2026
48AQI (US)
30th August 2026
44AQI (US)
31st August 2026
47AQI (US)
1st September 2026
51AQI (US)
2nd September 2026
49AQI (US)
3rd September 2026
46AQI (US)
4th September 2026
48AQI (US)
5th September 2026
42AQI (US)
6th September 2026
45AQI (US)
7th September 2026
37AQI (US)
8th September 2026
37AQI (US)
9th September 2026
43AQI (US)
10th September 2026
36AQI (US)
11th September 2026
38AQI (US)
12th September 2026
44AQI (US)
13th September 2026
40AQI (US)
14th September 2026
32AQI (US)
15th September 2026
40AQI (US)
16th September 2026
42AQI (US)
17th September 2026
51AQI (US)
18th September 2026
47AQI (US)
19th September 2026
46AQI (US)
20th September 2026
45AQI (US)
21st September 2026
32AQI (US)
22nd September 2026
36AQI (US)
23rd September 2026
23AQI (US)
24th September 2026
30AQI (US)
25th September 2026
39AQI (US)
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

34AQI (US)

43AQI (US)

37AQI (US)

30AQI (US)

36AQI (US)

27AQI (US)

47AQI (US)

46AQI (US)

41AQI (US)

No. of days

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

202638AQI (US)

25
6
27
1
30
1
28
26
4
30
21
10
28
3
23
2
238
27

Highest AQI (US) recorded in

July

47AQI (US)

Lowest AQI (US) recorded in

June

27AQI (US)

202536AQI (US)

30
1
28
29
2
29
1
31
16
14
21
10
21
9
1
19
11
25
6
24
6
19
12
292
72
1

Highest AQI (US) recorded in

June

48AQI (US)

Lowest AQI (US) recorded in

May

26AQI (US)

202433AQI (US)

31
24
5
29
2
30
31
28
1
30
1
28
3
30
29
2
30
30
1
350
15

Highest AQI (US) recorded in

May

37AQI (US)

Lowest AQI (US) recorded in

January

28AQI (US)

202342AQI (US)

21
9
27
1
29
2
26
4
27
4
5
22
1
1
1
21
9
1
16
15
27
3
30
1
29
30
1
288
71
1
2
1

Highest AQI (US) recorded in

June

78AQI (US)

Lowest AQI (US) recorded in

December

28AQI (US)

202239AQI (US)

24
6
17
4
26
5
16
1
28
3
24
6
19
3
2
27
2
28
3
22
8
20
11
253
52

Highest AQI (US) recorded in

July

45AQI (US)

Lowest AQI (US) recorded in

September

34AQI (US)

202139AQI (US)

21
8
23
5
25
6
26
4
30
1
29
1
16
14
1
22
8
1
25
5
29
2
23
5
23
8
292
67
2

Highest AQI (US) recorded in

July

49AQI (US)

Lowest AQI (US) recorded in

October

32AQI (US)

202039AQI (US)

11
2
18
2
18
25
5
25
6
28
3
26
3
28
2
25
3
19
10
223
36

Highest AQI (US) recorded in

April

43AQI (US)

Lowest AQI (US) recorded in

May

35AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
42AQI (US)
Least Polluted Year Recorded
2024(Avg.)
33AQI (US)

Normal's annual 2026 AQI (US) (38) shows an average percentage change of 0.5% (worsened AQI (US)) compared to previous years: 2020 (39), 2021 (39), 2022 (39), 2023 (42), 2024 (33), 2025 (36).