Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Madison, Wisconsin, 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

Madison, Wisconsin, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Aug 2025
122AQI
Lowest AQI recorded on
25th Aug 2025
17AQI

Same Day Analysis (7th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 40 of Good air quality, showing improvement over 2025 and 2023 on the same day.

Day & Night AQI Trend: 6th Aug - 7th Aug 2026

Madison, Wisconsin, United States

AQI
Day
Night
.

5 AM6th Aug 2026

8 PM

4 AM7th Aug 2026

Day time
Avg. Highest Time
5AM6th Aug

54AQI

Avg. Lowest Time
11AM6th Aug

40AQI

Night time
Avg. Highest Time
12AM7th Aug

50AQI

Avg. Lowest Time
4AM7th Aug

44AQI

In the last 24 hours,

Madison's AQI reached its highest point of 54 at 5 AM during the Day, while the lowest point, 40, was recorded at 11 AM during the Day between 6th Aug and 7th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Madison, Wisconsin, United States

JulAug
09th - 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 - 06th06th - 07th07th
Day
Night
9th Jul 2026425 AMAQI
9th Jul 2026466 AMAQI
9th Jul 2026527 AMAQI
9th Jul 2026268 AMAQI
9th Jul 2026159 AMAQI
9th Jul 20262010 AMAQI
9th Jul 20264011 AMAQI
9th Jul 20263012 PMAQI
9th Jul 2026241 PMAQI
9th Jul 2026272 PMAQI
9th Jul 2026303 PMAQI
9th Jul 2026294 PMAQI
9th Jul 2026275 PMAQI
9th Jul 2026266 PMAQI
9th Jul 2026257 PMAQI
9th Jul 2026288 PMAQI
9th Jul 2026329 PMAQI
9th Jul 202614610 PMAQI
9th Jul 20264411 PMAQI
10th Jul 20264412 AMAQI
10th Jul 2026501 AMAQI
10th Jul 2026562 AMAQI
10th Jul 2026553 AMAQI
10th Jul 2026604 AMAQI

25°C21/29°C

10th Jul 2026565 AMAQI
10th Jul 2026466 AMAQI
10th Jul 2026447 AMAQI
10th Jul 2026368 AMAQI
10th Jul 2026289 AMAQI
10th Jul 20262810 AMAQI
10th Jul 20262911 AMAQI
10th Jul 20262812 PMAQI
10th Jul 2026281 PMAQI
10th Jul 2026312 PMAQI
10th Jul 2026323 PMAQI
10th Jul 2026374 PMAQI
10th Jul 2026415 PMAQI
10th Jul 2026426 PMAQI
10th Jul 2026487 PMAQI
10th Jul 2026548 PMAQI
10th Jul 2026609 PMAQI
10th Jul 20269810 PMAQI
10th Jul 20265811 PMAQI
11th Jul 20265112 AMAQI
11th Jul 2026561 AMAQI
11th Jul 2026562 AMAQI
11th Jul 2026703 AMAQI
11th Jul 2026564 AMAQI

25°C20/31°C

11th Jul 2026575 AMAQI
11th Jul 2026556 AMAQI
11th Jul 2026547 AMAQI
11th Jul 2026538 AMAQI
11th Jul 2026519 AMAQI
11th Jul 20264610 AMAQI
11th Jul 20265011 AMAQI
11th Jul 20265312 PMAQI
11th Jul 2026531 PMAQI
11th Jul 2026572 PMAQI
11th Jul 2026563 PMAQI
11th Jul 2026534 PMAQI
11th Jul 2026525 PMAQI
11th Jul 2026466 PMAQI
11th Jul 2026507 PMAQI
11th Jul 2026508 PMAQI
11th Jul 2026459 PMAQI
11th Jul 20264610 PMAQI
11th Jul 20264811 PMAQI
12th Jul 20265112 AMAQI
12th Jul 2026501 AMAQI
12th Jul 2026512 AMAQI
12th Jul 2026543 AMAQI
12th Jul 2026544 AMAQI

25°C17/32°C

12th Jul 2026525 AMAQI
12th Jul 2026546 AMAQI
12th Jul 2026557 AMAQI
12th Jul 2026548 AMAQI
12th Jul 2026549 AMAQI
12th Jul 20265810 AMAQI
12th Jul 20265211 AMAQI
12th Jul 20265512 PMAQI
12th Jul 2026531 PMAQI
12th Jul 2026562 PMAQI
12th Jul 2026553 PMAQI
12th Jul 2026574 PMAQI
12th Jul 2026565 PMAQI
12th Jul 2026566 PMAQI
12th Jul 2026557 PMAQI
12th Jul 2026518 PMAQI
12th Jul 2026529 PMAQI
12th Jul 20265210 PMAQI
12th Jul 20265211 PMAQI
13th Jul 20265412 AMAQI
13th Jul 2026541 AMAQI
13th Jul 2026522 AMAQI
13th Jul 2026533 AMAQI
13th Jul 2026554 AMAQI

26°C19/33°C

13th Jul 2026545 AMAQI
13th Jul 2026526 AMAQI
13th Jul 2026567 AMAQI
13th Jul 2026548 AMAQI
13th Jul 2026559 AMAQI
13th Jul 20265610 AMAQI
13th Jul 20265511 AMAQI
13th Jul 20265412 PMAQI
13th Jul 2026541 PMAQI
13th Jul 2026542 PMAQI
13th Jul 2026523 PMAQI
13th Jul 2026514 PMAQI
13th Jul 2026515 PMAQI
13th Jul 2026526 PMAQI
13th Jul 2026567 PMAQI
13th Jul 2026548 PMAQI
13th Jul 2026529 PMAQI
13th Jul 20265310 PMAQI
13th Jul 20264711 PMAQI
14th Jul 20265012 AMAQI
14th Jul 2026571 AMAQI
14th Jul 2026582 AMAQI
14th Jul 2026623 AMAQI
14th Jul 2026574 AMAQI

28°C21/35°C

14th Jul 2026555 AMAQI
14th Jul 2026526 AMAQI
14th Jul 2026547 AMAQI
14th Jul 2026518 AMAQI
14th Jul 2026539 AMAQI
14th Jul 20265110 AMAQI
14th Jul 20265011 AMAQI
14th Jul 20264812 PMAQI
14th Jul 2026431 PMAQI
14th Jul 2026372 PMAQI
14th Jul 2026413 PMAQI
14th Jul 2026364 PMAQI
14th Jul 2026365 PMAQI
14th Jul 2026366 PMAQI
14th Jul 2026387 PMAQI
14th Jul 2026408 PMAQI
14th Jul 2026439 PMAQI
14th Jul 20265310 PMAQI
14th Jul 20264711 PMAQI
15th Jul 20265112 AMAQI
15th Jul 2026511 AMAQI
15th Jul 2026522 AMAQI
15th Jul 2026563 AMAQI
15th Jul 2026524 AMAQI

29°C23/36°C

15th Jul 2026585 AMAQI
15th Jul 2026556 AMAQI
15th Jul 2026567 AMAQI
15th Jul 2026518 AMAQI
15th Jul 2026509 AMAQI
15th Jul 20265210 AMAQI
15th Jul 20265211 AMAQI
15th Jul 20264912 PMAQI
15th Jul 2026531 PMAQI
15th Jul 2026522 PMAQI
15th Jul 2026493 PMAQI
15th Jul 2026484 PMAQI
15th Jul 2026485 PMAQI
15th Jul 2026496 PMAQI
15th Jul 2026467 PMAQI
15th Jul 2026528 PMAQI
15th Jul 2026519 PMAQI
15th Jul 20265410 PMAQI
15th Jul 20266611 PMAQI
16th Jul 20268812 AMAQI
16th Jul 20261481 AMAQI
16th Jul 20261642 AMAQI
16th Jul 20261783 AMAQI
16th Jul 20261734 AMAQI

29°C23/36°C

16th Jul 20261725 AMAQI
16th Jul 20261756 AMAQI
16th Jul 20261927 AMAQI
16th Jul 20262338 AMAQI
16th Jul 20262929 AMAQI
16th Jul 202638010 AMAQI
16th Jul 202637111 AMAQI
16th Jul 202629612 PMAQI
16th Jul 20262401 PMAQI
16th Jul 20262282 PMAQI
16th Jul 20261863 PMAQI
16th Jul 20261784 PMAQI
16th Jul 20261925 PMAQI
16th Jul 20261406 PMAQI
16th Jul 20261827 PMAQI
16th Jul 20261788 PMAQI
16th Jul 20261689 PMAQI
16th Jul 202617510 PMAQI
16th Jul 202621011 PMAQI
17th Jul 202628312 AMAQI
17th Jul 20263061 AMAQI
17th Jul 20262602 AMAQI
17th Jul 20262373 AMAQI
17th Jul 20262294 AMAQI

28°C22/35°C

17th Jul 20262255 AMAQI
17th Jul 20262236 AMAQI
17th Jul 20262307 AMAQI
17th Jul 20262338 AMAQI
17th Jul 20262579 AMAQI
17th Jul 202626910 AMAQI
17th Jul 202623611 AMAQI
17th Jul 202621012 PMAQI
17th Jul 20261821 PMAQI
17th Jul 20261652 PMAQI
17th Jul 20261543 PMAQI
17th Jul 20261124 PMAQI
17th Jul 2026815 PMAQI
17th Jul 2026666 PMAQI
17th Jul 2026587 PMAQI
17th Jul 2026548 PMAQI
17th Jul 2026549 PMAQI
17th Jul 20266210 PMAQI
17th Jul 20266211 PMAQI
18th Jul 20264912 AMAQI
18th Jul 2026431 AMAQI
18th Jul 2026432 AMAQI
18th Jul 2026443 AMAQI
18th Jul 2026424 AMAQI

28°C21/36°C

18th Jul 2026435 AMAQI
18th Jul 2026426 AMAQI
18th Jul 2026557 AMAQI
18th Jul 2026418 AMAQI
18th Jul 2026779 AMAQI
18th Jul 20263110 AMAQI
18th Jul 20265811 AMAQI
18th Jul 20264912 PMAQI
18th Jul 2026501 PMAQI
18th Jul 2026552 PMAQI
18th Jul 2026693 PMAQI
18th Jul 2026794 PMAQI
18th Jul 2026825 PMAQI
18th Jul 2026796 PMAQI
18th Jul 2026747 PMAQI
18th Jul 2026728 PMAQI
18th Jul 2026719 PMAQI
18th Jul 20267610 PMAQI
18th Jul 20269911 PMAQI
19th Jul 202615212 AMAQI
19th Jul 20261641 AMAQI
19th Jul 20261692 AMAQI
19th Jul 20261763 AMAQI
19th Jul 20261824 AMAQI

28°C23/33°C

19th Jul 20261955 AMAQI
19th Jul 20262046 AMAQI
19th Jul 20262167 AMAQI
19th Jul 20262068 AMAQI
19th Jul 20262109 AMAQI
19th Jul 202619410 AMAQI
19th Jul 202618811 AMAQI
19th Jul 202618412 PMAQI
19th Jul 20261731 PMAQI
19th Jul 20261642 PMAQI
19th Jul 20261603 PMAQI
19th Jul 20261564 PMAQI
19th Jul 20261525 PMAQI
19th Jul 20261486 PMAQI
19th Jul 20261467 PMAQI
19th Jul 20261388 PMAQI
19th Jul 20261259 PMAQI
19th Jul 202611710 PMAQI
19th Jul 202611811 PMAQI
20th Jul 202611412 AMAQI
20th Jul 20261101 AMAQI
20th Jul 20261072 AMAQI
20th Jul 20261093 AMAQI
20th Jul 20261094 AMAQI

24°C18/30°C

20th Jul 20261065 AMAQI
20th Jul 20261076 AMAQI
20th Jul 20261077 AMAQI
20th Jul 20261088 AMAQI
20th Jul 20261079 AMAQI
20th Jul 202611010 AMAQI
20th Jul 202610911 AMAQI
20th Jul 202611512 PMAQI
20th Jul 20261121 PMAQI
20th Jul 20261132 PMAQI
20th Jul 20261043 PMAQI
20th Jul 2026994 PMAQI
20th Jul 2026765 PMAQI
20th Jul 2026716 PMAQI
20th Jul 2026627 PMAQI
20th Jul 2026538 PMAQI
20th Jul 2026489 PMAQI
20th Jul 20264911 PMAQI
21st Jul 20264312 AMAQI
21st Jul 2026381 AMAQI
21st Jul 2026382 AMAQI
21st Jul 2026363 AMAQI
21st Jul 2026404 AMAQI

24°C18/30°C

21st Jul 2026405 AMAQI
21st Jul 2026476 AMAQI
21st Jul 2026507 AMAQI
21st Jul 2026448 AMAQI
21st Jul 2026509 AMAQI
21st Jul 20265310 AMAQI
21st Jul 20265011 AMAQI
21st Jul 20264212 PMAQI
21st Jul 2026501 PMAQI
21st Jul 2026442 PMAQI
21st Jul 2026383 PMAQI
21st Jul 2026374 PMAQI
21st Jul 2026325 PMAQI
21st Jul 2026316 PMAQI
21st Jul 2026247 PMAQI
21st Jul 2026298 PMAQI
21st Jul 2026309 PMAQI
21st Jul 20263210 PMAQI
21st Jul 20263311 PMAQI
22nd Jul 20263812 AMAQI
22nd Jul 2026321 AMAQI
22nd Jul 2026162 AMAQI
22nd Jul 2026123 AMAQI
22nd Jul 2026144 AMAQI

25°C20/28°C

22nd Jul 2026145 AMAQI
22nd Jul 2026126 AMAQI
22nd Jul 2026147 AMAQI
22nd Jul 2026188 AMAQI
22nd Jul 2026209 AMAQI
22nd Jul 20262410 AMAQI
22nd Jul 20261811 AMAQI
22nd Jul 20262012 PMAQI
22nd Jul 2026221 PMAQI
22nd Jul 2026122 PMAQI
22nd Jul 2026123 PMAQI
22nd Jul 2026264 PMAQI
22nd Jul 2026245 PMAQI
22nd Jul 2026246 PMAQI
22nd Jul 2026267 PMAQI
22nd Jul 2026678 PMAQI
22nd Jul 2026849 PMAQI
22nd Jul 20262710 PMAQI
22nd Jul 20262411 PMAQI
23rd Jul 20262612 AMAQI
23rd Jul 2026691 AMAQI
23rd Jul 2026292 AMAQI
23rd Jul 2026433 AMAQI
23rd Jul 2026274 AMAQI

19°C13/25°C

23rd Jul 2026245 AMAQI
23rd Jul 2026266 AMAQI
23rd Jul 2026247 AMAQI
23rd Jul 2026248 AMAQI
23rd Jul 2026259 AMAQI
23rd Jul 20262910 AMAQI
23rd Jul 20263411 AMAQI
23rd Jul 20263612 PMAQI
23rd Jul 2026281 PMAQI
23rd Jul 2026322 PMAQI
23rd Jul 2026303 PMAQI
23rd Jul 2026304 PMAQI
23rd Jul 2026245 PMAQI
23rd Jul 2026246 PMAQI
23rd Jul 2026337 PMAQI
23rd Jul 2026238 PMAQI
23rd Jul 2026269 PMAQI
23rd Jul 20263610 PMAQI
23rd Jul 20263811 PMAQI
24th Jul 20262812 AMAQI
24th Jul 2026241 AMAQI
24th Jul 2026262 AMAQI
24th Jul 2026283 AMAQI
24th Jul 2026384 AMAQI

20°C13/28°C

24th Jul 2026325 AMAQI
24th Jul 2026306 AMAQI
24th Jul 2026347 AMAQI
24th Jul 2026408 AMAQI
24th Jul 2026329 AMAQI
24th Jul 20263410 AMAQI
24th Jul 20262811 AMAQI
24th Jul 20262612 PMAQI
24th Jul 2026261 PMAQI
24th Jul 2026282 PMAQI
24th Jul 2026313 PMAQI
24th Jul 2026284 PMAQI
24th Jul 2026305 PMAQI
24th Jul 2026276 PMAQI
24th Jul 2026267 PMAQI
24th Jul 2026268 PMAQI
24th Jul 2026269 PMAQI
24th Jul 20262710 PMAQI
24th Jul 20263311 PMAQI
25th Jul 20262912 AMAQI
25th Jul 2026321 AMAQI
25th Jul 2026352 AMAQI
25th Jul 2026343 AMAQI
25th Jul 2026354 AMAQI

22°C15/29°C

25th Jul 2026385 AMAQI
25th Jul 2026446 AMAQI
25th Jul 2026367 AMAQI
25th Jul 2026428 AMAQI
25th Jul 2026489 AMAQI
25th Jul 20264810 AMAQI
25th Jul 20264011 AMAQI
25th Jul 20263712 PMAQI
25th Jul 2026361 PMAQI
25th Jul 2026422 PMAQI
25th Jul 2026383 PMAQI
25th Jul 2026324 PMAQI
25th Jul 2026385 PMAQI
25th Jul 2026386 PMAQI
25th Jul 2026387 PMAQI
25th Jul 2026348 PMAQI
25th Jul 2026339 PMAQI
25th Jul 20263310 PMAQI
25th Jul 20264311 PMAQI
26th Jul 20263512 AMAQI
26th Jul 2026371 AMAQI
26th Jul 2026372 AMAQI
26th Jul 2026423 AMAQI
26th Jul 2026374 AMAQI

23°C17/30°C

26th Jul 2026435 AMAQI
26th Jul 2026546 AMAQI
26th Jul 2026427 AMAQI
26th Jul 2026408 AMAQI
26th Jul 2026429 AMAQI
26th Jul 20264010 AMAQI
26th Jul 20264511 AMAQI
26th Jul 20264612 PMAQI
26th Jul 2026561 PMAQI
26th Jul 2026672 PMAQI
26th Jul 2026663 PMAQI
26th Jul 2026574 PMAQI
26th Jul 2026605 PMAQI
26th Jul 2026596 PMAQI
26th Jul 2026627 PMAQI
26th Jul 2026528 PMAQI
26th Jul 2026559 PMAQI
26th Jul 20265610 PMAQI
26th Jul 20265711 PMAQI
27th Jul 20265312 AMAQI
27th Jul 2026561 AMAQI
27th Jul 2026652 AMAQI
27th Jul 2026713 AMAQI
27th Jul 2026634 AMAQI

29°C23/36°C

27th Jul 2026565 AMAQI
27th Jul 2026596 AMAQI
27th Jul 2026607 AMAQI
27th Jul 2026548 AMAQI
27th Jul 2026529 AMAQI
27th Jul 20264810 AMAQI
27th Jul 20264811 AMAQI
27th Jul 20264812 PMAQI
27th Jul 2026451 PMAQI
27th Jul 2026462 PMAQI
27th Jul 2026483 PMAQI
27th Jul 2026504 PMAQI
27th Jul 2026505 PMAQI
27th Jul 2026526 PMAQI
27th Jul 2026527 PMAQI
27th Jul 2026478 PMAQI
27th Jul 2026449 PMAQI
27th Jul 20264210 PMAQI
27th Jul 20264411 PMAQI
28th Jul 20265412 AMAQI
28th Jul 2026521 AMAQI
28th Jul 2026442 AMAQI
28th Jul 2026443 AMAQI
28th Jul 2026384 AMAQI

30°C24/38°C

28th Jul 2026465 AMAQI
28th Jul 2026466 AMAQI
28th Jul 2026487 AMAQI
28th Jul 2026528 AMAQI
28th Jul 2026549 AMAQI
28th Jul 20265410 AMAQI
28th Jul 20265411 AMAQI
28th Jul 20265112 PMAQI
28th Jul 2026461 PMAQI
28th Jul 2026452 PMAQI
28th Jul 2026423 PMAQI
28th Jul 2026444 PMAQI
28th Jul 2026405 PMAQI
28th Jul 2026366 PMAQI
28th Jul 2026387 PMAQI
28th Jul 2026318 PMAQI
28th Jul 2026279 PMAQI
28th Jul 20262410 PMAQI
28th Jul 20262711 PMAQI
29th Jul 20262412 AMAQI
29th Jul 2026281 AMAQI
29th Jul 2026302 AMAQI
29th Jul 2026243 AMAQI
29th Jul 2026244 AMAQI

26°C21/31°C

29th Jul 2026285 AMAQI
29th Jul 2026286 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026268 AMAQI
29th Jul 2026279 AMAQI
29th Jul 20262710 AMAQI
29th Jul 20263411 AMAQI
29th Jul 20262812 PMAQI
29th Jul 2026261 PMAQI
29th Jul 2026302 PMAQI
29th Jul 2026263 PMAQI
29th Jul 2026364 PMAQI
29th Jul 2026365 PMAQI
29th Jul 2026336 PMAQI
29th Jul 2026307 PMAQI
29th Jul 2026318 PMAQI
29th Jul 2026349 PMAQI
29th Jul 20262610 PMAQI
29th Jul 20262911 PMAQI
30th Jul 20262912 AMAQI
30th Jul 2026301 AMAQI
30th Jul 2026312 AMAQI
30th Jul 2026303 AMAQI
30th Jul 2026304 AMAQI

24°C16/31°C

30th Jul 2026325 AMAQI
30th Jul 2026346 AMAQI
30th Jul 2026397 AMAQI
30th Jul 2026328 AMAQI
30th Jul 2026309 AMAQI
30th Jul 20262210 AMAQI
30th Jul 20262411 AMAQI
30th Jul 20262912 PMAQI
30th Jul 2026281 PMAQI
30th Jul 2026302 PMAQI
30th Jul 2026283 PMAQI
30th Jul 2026344 PMAQI
30th Jul 2026325 PMAQI
30th Jul 2026326 PMAQI
30th Jul 2026377 PMAQI
30th Jul 2026338 PMAQI
30th Jul 2026389 PMAQI
30th Jul 20263810 PMAQI
30th Jul 20263811 PMAQI
31st Jul 20263712 AMAQI
31st Jul 2026361 AMAQI
31st Jul 2026382 AMAQI
31st Jul 2026393 AMAQI
31st Jul 2026344 AMAQI

26°C17/34°C

31st Jul 2026395 AMAQI
31st Jul 2026376 AMAQI
31st Jul 2026387 AMAQI
31st Jul 2026408 AMAQI
31st Jul 2026369 AMAQI
31st Jul 20263410 AMAQI
31st Jul 20263311 AMAQI
31st Jul 20263812 PMAQI
31st Jul 2026381 PMAQI
31st Jul 2026322 PMAQI
31st Jul 2026233 PMAQI
31st Jul 2026324 PMAQI
31st Jul 2026345 PMAQI
31st Jul 2026366 PMAQI
31st Jul 2026387 PMAQI
31st Jul 2026478 PMAQI
31st Jul 2026469 PMAQI
31st Jul 20265010 PMAQI
31st Jul 20265011 PMAQI
1st Aug 20264912 AMAQI
1st Aug 2026481 AMAQI
1st Aug 2026412 AMAQI
1st Aug 2026323 AMAQI
1st Aug 2026404 AMAQI

21°C19/27°C

1st Aug 2026285 AMAQI
1st Aug 2026406 AMAQI
1st Aug 2026427 AMAQI
1st Aug 2026388 AMAQI
1st Aug 2026369 AMAQI
1st Aug 20264410 AMAQI
1st Aug 20264411 AMAQI
1st Aug 20264012 PMAQI
1st Aug 2026381 PMAQI
1st Aug 2026442 PMAQI
1st Aug 2026483 PMAQI
1st Aug 2026484 PMAQI
1st Aug 2026385 PMAQI
1st Aug 2026366 PMAQI
1st Aug 2026347 PMAQI
1st Aug 2026468 PMAQI
1st Aug 2026419 PMAQI
1st Aug 20264310 PMAQI
1st Aug 20264611 PMAQI
2nd Aug 20264312 AMAQI
2nd Aug 2026401 AMAQI
2nd Aug 2026462 AMAQI
2nd Aug 2026403 AMAQI
2nd Aug 2026504 AMAQI

20°C18/26°C

2nd Aug 2026435 AMAQI
2nd Aug 2026496 AMAQI
2nd Aug 2026457 AMAQI
2nd Aug 2026448 AMAQI
2nd Aug 2026429 AMAQI
2nd Aug 20264010 AMAQI
2nd Aug 20264011 AMAQI
2nd Aug 20264212 PMAQI
2nd Aug 2026441 PMAQI
2nd Aug 2026472 PMAQI
2nd Aug 2026423 PMAQI
2nd Aug 2026424 PMAQI
2nd Aug 2026465 PMAQI
2nd Aug 2026406 PMAQI
2nd Aug 2026407 PMAQI
2nd Aug 2026368 PMAQI
2nd Aug 2026369 PMAQI
2nd Aug 20263710 PMAQI
2nd Aug 20263611 PMAQI
3rd Aug 20263612 AMAQI
3rd Aug 2026421 AMAQI
3rd Aug 2026342 AMAQI
3rd Aug 2026343 AMAQI
3rd Aug 2026384 AMAQI

22°C19/28°C

3rd Aug 2026405 AMAQI
3rd Aug 2026326 AMAQI
3rd Aug 2026327 AMAQI
3rd Aug 2026328 AMAQI
3rd Aug 2026289 AMAQI
3rd Aug 20263010 AMAQI
3rd Aug 20263211 AMAQI
3rd Aug 20263212 PMAQI
3rd Aug 2026321 PMAQI
3rd Aug 2026272 PMAQI
3rd Aug 2026283 PMAQI
3rd Aug 2026294 PMAQI
3rd Aug 2026325 PMAQI
3rd Aug 2026366 PMAQI
3rd Aug 2026377 PMAQI
3rd Aug 2026388 PMAQI
3rd Aug 2026349 PMAQI
3rd Aug 20263610 PMAQI
3rd Aug 20263711 PMAQI
4th Aug 20263812 AMAQI
4th Aug 2026321 AMAQI
4th Aug 2026382 AMAQI
4th Aug 2026333 AMAQI
4th Aug 2026434 AMAQI

22°C15/29°C

4th Aug 2026405 AMAQI
4th Aug 2026436 AMAQI
4th Aug 2026477 AMAQI
4th Aug 2026448 AMAQI
4th Aug 2026379 AMAQI
4th Aug 20264010 AMAQI
4th Aug 20264611 AMAQI
4th Aug 20264012 PMAQI
4th Aug 2026421 PMAQI
4th Aug 2026452 PMAQI
4th Aug 2026483 PMAQI
4th Aug 2026504 PMAQI
4th Aug 2026415 PMAQI
4th Aug 2026476 PMAQI
4th Aug 2026487 PMAQI
4th Aug 2026498 PMAQI
4th Aug 2026449 PMAQI
4th Aug 20264310 PMAQI
4th Aug 20264611 PMAQI
5th Aug 20263512 AMAQI
5th Aug 2026411 AMAQI
5th Aug 2026452 AMAQI
5th Aug 2026493 AMAQI
5th Aug 2026544 AMAQI

24°C18/31°C

5th Aug 2026615 AMAQI
5th Aug 2026646 AMAQI
5th Aug 2026647 AMAQI
5th Aug 2026658 AMAQI
5th Aug 2026669 AMAQI
5th Aug 20266310 AMAQI
5th Aug 20266111 AMAQI
5th Aug 20265912 PMAQI
5th Aug 2026581 PMAQI
5th Aug 2026632 PMAQI
5th Aug 2026633 PMAQI
5th Aug 2026644 PMAQI
5th Aug 2026625 PMAQI
5th Aug 2026606 PMAQI
5th Aug 2026637 PMAQI
5th Aug 2026618 PMAQI
5th Aug 2026589 PMAQI
5th Aug 20266210 PMAQI
5th Aug 20265811 PMAQI
6th Aug 20265612 AMAQI
6th Aug 2026561 AMAQI
6th Aug 2026552 AMAQI
6th Aug 2026533 AMAQI
6th Aug 2026554 AMAQI

22°C19/24°C

6th Aug 2026545 AMAQI
6th Aug 2026526 AMAQI
6th Aug 2026517 AMAQI
6th Aug 2026508 AMAQI
6th Aug 2026469 AMAQI
6th Aug 20264210 AMAQI
6th Aug 20264011 AMAQI
6th Aug 20264412 PMAQI
6th Aug 2026511 PMAQI
6th Aug 2026532 PMAQI
6th Aug 2026453 PMAQI
6th Aug 2026444 PMAQI
6th Aug 2026445 PMAQI
6th Aug 2026466 PMAQI
6th Aug 2026467 PMAQI
6th Aug 2026488 PMAQI
6th Aug 2026469 PMAQI
6th Aug 20264510 PMAQI
6th Aug 20264811 PMAQI
7th Aug 20265012 AMAQI
7th Aug 2026491 AMAQI
7th Aug 2026462 AMAQI
7th Aug 2026443 AMAQI
7th Aug 2026444 AMAQI

22°C16/28°C

7th Aug 2026405 AMAQI
5 AM
7th Aug 2026366 AMAQI
7th Aug 2026357 AMAQI
7th Aug 2026348 AMAQI
7th Aug 2026409 AMAQI
7th Aug 20263410 AMAQI
7th Aug 20264211 AMAQI
7th Aug 20264012 PMAQI
12 PM
7th Aug 2026341 PMAQI
7th Aug 2026322 PMAQI
7th Aug 2026343 PMAQI
7th Aug 2026354 PMAQI
7th Aug 2026315 PMAQI
7th Aug 2026356 PMAQI
7th Aug 2026407 PMAQI
7th Aug 2026388 PMAQI
8 PM
7th Aug 2026469 PMAQI
7th Aug 20264810 PMAQI
7th Aug 20264311 PMAQI
12 AM
4 AM

24°C21/31°C

Day time
Avg. Highest Time
9 AM - 11 AM

66AQI

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

50AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 11 AM (Avg. 66), while the lowest AQI was between 6 PM to 6 PM (Avg. 50).
Night time
Avg. Highest Time
1 AM

63AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
9 PM

52AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 1 AM (Avg. 63), while the lowest AQI was between 9 PM to 9 PM (Avg. 52).

2026 Days Vs Air Quality

Madison, Wisconsin, United States

2026

80%

172

19%

41

0.9%

2

0.4%

1

Total number of days with different AQI categories in last 219 days in 2026 (146 days remaining)

Good
172 Days
Moderate
41 Days
Poor
0 Days
Unhealthy
2 Days
Severe
1 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 80%

Health Risk Level:

Low

In 2026, 80% of 219 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

Madison, Wisconsin, 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
9AQI (US)
2nd January 2026
21AQI (US)
3rd January 2026
19AQI (US)
4th January 2026
46AQI (US)
5th January 2026
73AQI (US)
6th January 2026
93AQI (US)
7th January 2026
57AQI (US)
8th January 2026
56AQI (US)
9th January 2026
30AQI (US)
10th January 2026
41AQI (US)
11th January 2026
22AQI (US)
12th January 2026
23AQI (US)
13th January 2026
22AQI (US)
14th January 2026
10AQI (US)
15th January 2026
11AQI (US)
16th January 2026
20AQI (US)
17th January 2026
16AQI (US)
18th January 2026
15AQI (US)
19th January 2026
14AQI (US)
20th January 2026
26AQI (US)
21st January 2026
31AQI (US)
22nd January 2026
42AQI (US)
23rd January 2026
52AQI (US)
24th January 2026
38AQI (US)
25th January 2026
40AQI (US)
26th January 2026
36AQI (US)
27th January 2026
29AQI (US)
28th January 2026
30AQI (US)
29th January 2026
42AQI (US)
30th January 2026
54AQI (US)
31st January 2026
35AQI (US)
1st February 2026
34AQI (US)
2nd February 2026
46AQI (US)
3rd February 2026
39AQI (US)
4th February 2026
30AQI (US)
5th February 2026
56AQI (US)
6th February 2026
50AQI (US)
7th February 2026
35AQI (US)
8th February 2026
45AQI (US)
9th February 2026
66AQI (US)
10th February 2026
51AQI (US)
11th February 2026
31AQI (US)
12th February 2026
33AQI (US)
13th February 2026
71AQI (US)
14th February 2026
76AQI (US)
15th February 2026
63AQI (US)
16th February 2026
46AQI (US)
17th February 2026
69AQI (US)
18th February 2026
52AQI (US)
19th February 2026
31AQI (US)
20th February 2026
38AQI (US)
21st February 2026
33AQI (US)
22nd February 2026
37AQI (US)
23rd February 2026
36AQI (US)
24th February 2026
38AQI (US)
25th February 2026
35AQI (US)
26th February 2026
40AQI (US)
27th February 2026
49AQI (US)
28th February 2026
34AQI (US)
1st March 2026
30AQI (US)
2nd March 2026
41AQI (US)
3rd March 2026
55AQI (US)
4th March 2026
80AQI (US)
5th March 2026
84AQI (US)
6th March 2026
60AQI (US)
7th March 2026
38AQI (US)
8th March 2026
38AQI (US)
9th March 2026
33AQI (US)
10th March 2026
36AQI (US)
11th March 2026
40AQI (US)
12th March 2026
38AQI (US)
13th March 2026
38AQI (US)
14th March 2026
36AQI (US)
15th March 2026
31AQI (US)
16th March 2026
36AQI (US)
17th March 2026
34AQI (US)
18th March 2026
44AQI (US)
19th March 2026
78AQI (US)
20th March 2026
56AQI (US)
21st March 2026
67AQI (US)
22nd March 2026
38AQI (US)
23rd March 2026
39AQI (US)
24th March 2026
34AQI (US)
25th March 2026
48AQI (US)
26th March 2026
50AQI (US)
27th March 2026
29AQI (US)
28th March 2026
30AQI (US)
29th March 2026
37AQI (US)
30th March 2026
53AQI (US)
31st March 2026
44AQI (US)
1st April 2026
31AQI (US)
2nd April 2026
29AQI (US)
3rd April 2026
45AQI (US)
4th April 2026
32AQI (US)
5th April 2026
30AQI (US)
6th April 2026
32AQI (US)
7th April 2026
26AQI (US)
8th April 2026
26AQI (US)
9th April 2026
31AQI (US)
10th April 2026
40AQI (US)
11th April 2026
62AQI (US)
12th April 2026
50AQI (US)
13th April 2026
37AQI (US)
14th April 2026
31AQI (US)
15th April 2026
28AQI (US)
16th April 2026
32AQI (US)
17th April 2026
18th April 2026
27AQI (US)
19th April 2026
33AQI (US)
20th April 2026
28AQI (US)
21st April 2026
27AQI (US)
22nd April 2026
23rd April 2026
33AQI (US)
24th April 2026
21AQI (US)
25th April 2026
27AQI (US)
26th April 2026
40AQI (US)
27th April 2026
47AQI (US)
28th April 2026
24AQI (US)
29th April 2026
26AQI (US)
30th April 2026
32AQI (US)
1st May 2026
35AQI (US)
2nd May 2026
28AQI (US)
3rd May 2026
27AQI (US)
4th May 2026
35AQI (US)
5th May 2026
30AQI (US)
6th May 2026
18AQI (US)
7th May 2026
22AQI (US)
8th May 2026
31AQI (US)
9th May 2026
10th May 2026
27AQI (US)
11th May 2026
23AQI (US)
12th May 2026
24AQI (US)
13th May 2026
26AQI (US)
14th May 2026
16AQI (US)
15th May 2026
24AQI (US)
16th May 2026
30AQI (US)
17th May 2026
62AQI (US)
18th May 2026
40AQI (US)
19th May 2026
39AQI (US)
20th May 2026
48AQI (US)
21st May 2026
42AQI (US)
22nd May 2026
33AQI (US)
23rd May 2026
34AQI (US)
24th May 2026
48AQI (US)
25th May 2026
42AQI (US)
26th May 2026
24AQI (US)
27th May 2026
18AQI (US)
28th May 2026
13AQI (US)
29th May 2026
16AQI (US)
30th May 2026
26AQI (US)
31st May 2026
20AQI (US)
1st June 2026
20AQI (US)
2nd June 2026
12AQI (US)
3rd June 2026
14AQI (US)
4th June 2026
22AQI (US)
5th June 2026
48AQI (US)
6th June 2026
28AQI (US)
7th June 2026
36AQI (US)
8th June 2026
44AQI (US)
9th June 2026
29AQI (US)
10th June 2026
28AQI (US)
11th June 2026
22AQI (US)
12th June 2026
14AQI (US)
13th June 2026
10AQI (US)
14th June 2026
20AQI (US)
15th June 2026
19AQI (US)
16th June 2026
16AQI (US)
17th June 2026
23AQI (US)
18th June 2026
22AQI (US)
19th June 2026
20AQI (US)
20th June 2026
23AQI (US)
21st June 2026
25AQI (US)
22nd June 2026
29AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
28AQI (US)
25th June 2026
18AQI (US)
26th June 2026
22AQI (US)
27th June 2026
46AQI (US)
28th June 2026
54AQI (US)
29th June 2026
56AQI (US)
30th June 2026
55AQI (US)
1st July 2026
53AQI (US)
2nd July 2026
34AQI (US)
3rd July 2026
37AQI (US)
4th July 2026
55AQI (US)
5th July 2026
62AQI (US)
6th July 2026
55AQI (US)
7th July 2026
51AQI (US)
8th July 2026
54AQI (US)
9th July 2026
41AQI (US)
10th July 2026
46AQI (US)
11th July 2026
53AQI (US)
12th July 2026
54AQI (US)
13th July 2026
53AQI (US)
14th July 2026
48AQI (US)
15th July 2026
52AQI (US)
16th July 2026
206AQI (US)
17th July 2026
177AQI (US)
18th July 2026
59AQI (US)
19th July 2026
168AQI (US)
20th July 2026
96AQI (US)
21st July 2026
40AQI (US)
22nd July 2026
25AQI (US)
23rd July 2026
30AQI (US)
24th July 2026
30AQI (US)
25th July 2026
38AQI (US)
26th July 2026
50AQI (US)
27th July 2026
52AQI (US)
28th July 2026
43AQI (US)
29th July 2026
29AQI (US)
30th July 2026
32AQI (US)
31st July 2026
38AQI (US)
1st August 2026
41AQI (US)
2nd August 2026
42AQI (US)
3rd August 2026
34AQI (US)
4th August 2026
42AQI (US)
5th August 2026
58AQI (US)
6th August 2026
49AQI (US)
7th August 2026
40AQI (US)
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
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)

45AQI (US)

45AQI (US)

33AQI (US)

30AQI (US)

28AQI (US)

60AQI (US)

44AQI (US)

No. of days

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

202640AQI (US)

25
6
20
8
23
8
27
1
29
1
27
3
15
13
2
1
6
1
172
41
2
1

Highest AQI (US) recorded in

July

60AQI (US)

Lowest AQI (US) recorded in

June

28AQI (US)

202537AQI (US)

30
1
27
1
30
1
28
2
31
15
14
1
19
11
1
19
8
4
24
6
26
5
23
7
18
13
290
69
5
1

Highest AQI (US) recorded in

June

52AQI (US)

Lowest AQI (US) recorded in

May

27AQI (US)

202433AQI (US)

27
4
27
2
31
27
3
30
1
30
31
28
3
30
30
1
29
1
28
3
348
18

Highest AQI (US) recorded in

April

38AQI (US)

Lowest AQI (US) recorded in

November

28AQI (US)

202342AQI (US)

23
8
24
4
29
2
27
3
21
10
7
17
3
1
2
22
6
3
17
14
28
2
30
1
27
2
28
3
283
72
6
1
2

Highest AQI (US) recorded in

June

86AQI (US)

Lowest AQI (US) recorded in

October

29AQI (US)

202236AQI (US)

25
5
18
3
25
6
30
27
4
28
2
23
2
29
24
7
25
5
27
4
283
36

Highest AQI (US) recorded in

October

40AQI (US)

Lowest AQI (US) recorded in

September

30AQI (US)

202139AQI (US)

19
10
19
9
24
7
25
5
30
1
30
15
16
23
8
30
29
2
27
3
24
7
295
68

Highest AQI (US) recorded in

July

49AQI (US)

Lowest AQI (US) recorded in

November

31AQI (US)

202036AQI (US)

11
2
18
3
18
27
3
26
5
30
1
28
2
30
1
25
5
21
10
234
32

Highest AQI (US) recorded in

December

41AQI (US)

Lowest AQI (US) recorded in

September

30AQI (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)

Madison's annual 2026 AQI (US) (40) shows an average percentage change of 8.2% (worsened AQI (US)) compared to previous years: 2020 (36), 2021 (39), 2022 (36), 2023 (42), 2024 (33), 2025 (37).