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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Rockford, 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

Rockford, Illinois, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2025
115AQI
Lowest AQI recorded on
14th Aug 2023
13AQI

Same Day Analysis (9th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 43 of Good air quality, showing improvement over 2025 and 2023 on the same day.

Day & Night AQI Trend: 9th Aug - 10th Aug 2026

Rockford, Illinois, United States

AQI
Day
Night
.

5 AM9th Aug 2026

8 PM

4 AM10th Aug 2026

Day time
Avg. Highest Time
8PM9th Aug

130AQI

Avg. Lowest Time
1PM9th Aug

27AQI

Night time
Avg. Highest Time
9PM9th Aug

52AQI

Avg. Lowest Time
1AM10th Aug

33AQI

In the last 24 hours,

Rockford's AQI reached its highest point of 130 at 8 PM during the Day, while the lowest point, 27, was recorded at 1 PM during the Day between 9th Aug and 10th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Rockford, Illinois, United States

JulAug
12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th
Day
Night
12th Jul 2026565 AMAQI
12th Jul 2026576 AMAQI
12th Jul 2026587 AMAQI
12th Jul 2026608 AMAQI
12th Jul 2026589 AMAQI
12th Jul 20266010 AMAQI
12th Jul 20265311 AMAQI
12th Jul 20265612 PMAQI
12th Jul 2026581 PMAQI
12th Jul 2026572 PMAQI
12th Jul 2026583 PMAQI
12th Jul 2026604 PMAQI
12th Jul 2026595 PMAQI
12th Jul 2026606 PMAQI
12th Jul 2026557 PMAQI
12th Jul 2026528 PMAQI
12th Jul 2026549 PMAQI
12th Jul 20265710 PMAQI
12th Jul 20265511 PMAQI
13th Jul 20265612 AMAQI
13th Jul 2026501 AMAQI
13th Jul 2026552 AMAQI
13th Jul 2026583 AMAQI
13th Jul 2026584 AMAQI

25°C16/35°C

13th Jul 2026565 AMAQI
13th Jul 2026576 AMAQI
13th Jul 2026617 AMAQI
13th Jul 2026578 AMAQI
13th Jul 2026609 AMAQI
13th Jul 20265710 AMAQI
13th Jul 20265811 AMAQI
13th Jul 20265412 PMAQI
13th Jul 2026561 PMAQI
13th Jul 2026582 PMAQI
13th Jul 2026563 PMAQI
13th Jul 2026534 PMAQI
13th Jul 2026545 PMAQI
13th Jul 2026556 PMAQI
13th Jul 2026567 PMAQI
13th Jul 2026558 PMAQI
13th Jul 2026549 PMAQI
13th Jul 20265310 PMAQI
13th Jul 20265011 PMAQI
14th Jul 20265412 AMAQI
14th Jul 2026581 AMAQI
14th Jul 2026602 AMAQI
14th Jul 2026643 AMAQI
14th Jul 2026604 AMAQI

27°C19/38°C

14th Jul 2026595 AMAQI
14th Jul 2026546 AMAQI
14th Jul 2026587 AMAQI
14th Jul 2026558 AMAQI
14th Jul 2026559 AMAQI
14th Jul 20265410 AMAQI
14th Jul 20264611 AMAQI
14th Jul 20264812 PMAQI
14th Jul 2026421 PMAQI
14th Jul 2026382 PMAQI
14th Jul 2026463 PMAQI
14th Jul 2026384 PMAQI
14th Jul 2026425 PMAQI
14th Jul 2026366 PMAQI
14th Jul 2026407 PMAQI
14th Jul 2026408 PMAQI
14th Jul 2026429 PMAQI
14th Jul 20266010 PMAQI
14th Jul 20264811 PMAQI
15th Jul 20265312 AMAQI
15th Jul 2026551 AMAQI
15th Jul 20261062 AMAQI
15th Jul 2026623 AMAQI
15th Jul 2026554 AMAQI

29°C19/40°C

15th Jul 2026835 AMAQI
15th Jul 2026606 AMAQI
15th Jul 2026967 AMAQI
15th Jul 2026538 AMAQI
15th Jul 2026519 AMAQI
15th Jul 20265310 AMAQI
15th Jul 20265211 AMAQI
15th Jul 20265212 PMAQI
15th Jul 2026531 PMAQI
15th Jul 2026542 PMAQI
15th Jul 2026473 PMAQI
15th Jul 2026524 PMAQI
15th Jul 2026525 PMAQI
15th Jul 2026516 PMAQI
15th Jul 2026487 PMAQI
15th Jul 2026688 PMAQI
15th Jul 2026579 PMAQI
15th Jul 20267010 PMAQI
15th Jul 20267311 PMAQI
16th Jul 202613812 AMAQI
16th Jul 20261691 AMAQI
16th Jul 20261822 AMAQI
16th Jul 20261803 AMAQI
16th Jul 20261884 AMAQI

29°C21/39°C

16th Jul 20261915 AMAQI
16th Jul 20262046 AMAQI
16th Jul 20262157 AMAQI
16th Jul 20262848 AMAQI
16th Jul 20263269 AMAQI
16th Jul 202638510 AMAQI
16th Jul 202637811 AMAQI
16th Jul 202631312 PMAQI
16th Jul 20262421 PMAQI
16th Jul 20262262 PMAQI
16th Jul 20261883 PMAQI
16th Jul 20261794 PMAQI
16th Jul 20261855 PMAQI
16th Jul 2026906 PMAQI
16th Jul 20261837 PMAQI
16th Jul 20261808 PMAQI
16th Jul 20261709 PMAQI
16th Jul 202620210 PMAQI
16th Jul 202626611 PMAQI
17th Jul 202631012 AMAQI
17th Jul 20263201 AMAQI
17th Jul 20262802 AMAQI
17th Jul 20262483 AMAQI
17th Jul 20262784 AMAQI

29°C21/39°C

17th Jul 20262905 AMAQI
17th Jul 20263066 AMAQI
17th Jul 20262977 AMAQI
17th Jul 20263108 AMAQI
17th Jul 20263309 AMAQI
17th Jul 202630110 AMAQI
17th Jul 202625811 AMAQI
17th Jul 202620212 PMAQI
17th Jul 20261701 PMAQI
17th Jul 20261512 PMAQI
17th Jul 20261153 PMAQI
17th Jul 2026924 PMAQI
17th Jul 2026825 PMAQI
17th Jul 2026726 PMAQI
17th Jul 2026617 PMAQI
17th Jul 2026568 PMAQI
17th Jul 2026569 PMAQI
17th Jul 20265210 PMAQI
17th Jul 20265011 PMAQI
18th Jul 20265012 AMAQI
18th Jul 2026481 AMAQI
18th Jul 2026502 AMAQI
18th Jul 2026503 AMAQI
18th Jul 2026484 AMAQI

29°C21/38°C

18th Jul 2026485 AMAQI
18th Jul 2026466 AMAQI
18th Jul 2026467 AMAQI
18th Jul 2026508 AMAQI
18th Jul 2026469 AMAQI
18th Jul 20264610 AMAQI
18th Jul 20264611 AMAQI
18th Jul 20264812 PMAQI
18th Jul 2026461 PMAQI
18th Jul 2026442 PMAQI
18th Jul 2026533 PMAQI
18th Jul 2026564 PMAQI
18th Jul 2026585 PMAQI
18th Jul 2026706 PMAQI
18th Jul 2026787 PMAQI
18th Jul 2026868 PMAQI
18th Jul 2026989 PMAQI
18th Jul 202610110 PMAQI
18th Jul 202611411 PMAQI
19th Jul 202614712 AMAQI
19th Jul 20261661 AMAQI
19th Jul 20261782 AMAQI
19th Jul 20261863 AMAQI
19th Jul 20261974 AMAQI

28°C24/35°C

19th Jul 20262005 AMAQI
19th Jul 20261946 AMAQI
19th Jul 20261927 AMAQI
19th Jul 20261848 AMAQI
19th Jul 20261769 AMAQI
19th Jul 202616210 AMAQI
19th Jul 202615611 AMAQI
19th Jul 202615212 PMAQI
19th Jul 20261501 PMAQI
19th Jul 20261262 PMAQI
19th Jul 20261193 PMAQI
19th Jul 20261144 PMAQI
19th Jul 20261075 PMAQI
19th Jul 20261136 PMAQI
19th Jul 20261267 PMAQI
19th Jul 20261128 PMAQI
19th Jul 20261069 PMAQI
19th Jul 202611210 PMAQI
19th Jul 202610711 PMAQI
20th Jul 202611612 AMAQI
20th Jul 20261181 AMAQI
20th Jul 20261172 AMAQI
20th Jul 20261253 AMAQI
20th Jul 20261244 AMAQI

24°C18/33°C

20th Jul 20261245 AMAQI
20th Jul 20261306 AMAQI
20th Jul 20261227 AMAQI
20th Jul 20261268 AMAQI
20th Jul 20261349 AMAQI
20th Jul 202614010 AMAQI
20th Jul 202613811 AMAQI
20th Jul 202614312 PMAQI
20th Jul 20261381 PMAQI
20th Jul 20261342 PMAQI
20th Jul 20261333 PMAQI
20th Jul 20261304 PMAQI
20th Jul 2026825 PMAQI
20th Jul 2026876 PMAQI
20th Jul 2026837 PMAQI
20th Jul 2026858 PMAQI
20th Jul 2026849 PMAQI
20th Jul 20266011 PMAQI
21st Jul 20263812 AMAQI
21st Jul 2026581 AMAQI
21st Jul 2026502 AMAQI
21st Jul 2026503 AMAQI
21st Jul 2026464 AMAQI

23°C16/31°C

21st Jul 2026495 AMAQI
21st Jul 2026506 AMAQI
21st Jul 2026577 AMAQI
21st Jul 2026648 AMAQI
21st Jul 2026609 AMAQI
21st Jul 20265010 AMAQI
21st Jul 20265611 AMAQI
21st Jul 20265412 PMAQI
21st Jul 2026521 PMAQI
21st Jul 2026502 PMAQI
21st Jul 2026403 PMAQI
21st Jul 2026404 PMAQI
21st Jul 2026425 PMAQI
21st Jul 2026446 PMAQI
21st Jul 2026427 PMAQI
21st Jul 2026488 PMAQI
21st Jul 2026469 PMAQI
21st Jul 20265210 PMAQI
21st Jul 20263011 PMAQI
22nd Jul 20264412 AMAQI
22nd Jul 2026401 AMAQI
22nd Jul 2026182 AMAQI
22nd Jul 2026183 AMAQI
22nd Jul 2026174 AMAQI

25°C20/32°C

22nd Jul 2026145 AMAQI
22nd Jul 2026186 AMAQI
22nd Jul 2026177 AMAQI
22nd Jul 2026198 AMAQI
22nd Jul 2026219 AMAQI
22nd Jul 20262410 AMAQI
22nd Jul 20261911 AMAQI
22nd Jul 20262412 PMAQI
22nd Jul 2026251 PMAQI
22nd Jul 2026142 PMAQI
22nd Jul 2026193 PMAQI
22nd Jul 2026214 PMAQI
22nd Jul 2026255 PMAQI
22nd Jul 2026256 PMAQI
22nd Jul 2026277 PMAQI
22nd Jul 2026928 PMAQI
22nd Jul 20261269 PMAQI
22nd Jul 20263610 PMAQI
22nd Jul 20262711 PMAQI
23rd Jul 20262612 AMAQI
23rd Jul 2026441 AMAQI
23rd Jul 2026422 AMAQI
23rd Jul 2026423 AMAQI
23rd Jul 2026384 AMAQI

20°C13/26°C

23rd Jul 2026315 AMAQI
23rd Jul 2026336 AMAQI
23rd Jul 2026347 AMAQI
23rd Jul 2026408 AMAQI
23rd Jul 2026369 AMAQI
23rd Jul 20263810 AMAQI
23rd Jul 20262811 AMAQI
23rd Jul 20264212 PMAQI
23rd Jul 2026311 PMAQI
23rd Jul 2026322 PMAQI
23rd Jul 2026243 PMAQI
23rd Jul 2026274 PMAQI
23rd Jul 2026255 PMAQI
23rd Jul 2026236 PMAQI
23rd Jul 2026367 PMAQI
23rd Jul 2026228 PMAQI
23rd Jul 2026289 PMAQI
23rd Jul 20262210 PMAQI
23rd Jul 20264811 PMAQI
24th Jul 20263612 AMAQI
24th Jul 2026361 AMAQI
24th Jul 2026382 AMAQI
24th Jul 2026513 AMAQI
24th Jul 2026444 AMAQI

20°C12/29°C

24th Jul 2026385 AMAQI
24th Jul 2026406 AMAQI
24th Jul 2026467 AMAQI
24th Jul 2026468 AMAQI
24th Jul 2026429 AMAQI
24th Jul 20264610 AMAQI
24th Jul 20264011 AMAQI
24th Jul 20263312 PMAQI
24th Jul 2026361 PMAQI
24th Jul 2026382 PMAQI
24th Jul 2026343 PMAQI
24th Jul 2026404 PMAQI
24th Jul 2026385 PMAQI
24th Jul 2026336 PMAQI
24th Jul 2026367 PMAQI
24th Jul 2026318 PMAQI
24th Jul 2026339 PMAQI
24th Jul 20263610 PMAQI
24th Jul 20264011 PMAQI
25th Jul 20264012 AMAQI
25th Jul 2026401 AMAQI
25th Jul 2026382 AMAQI
25th Jul 2026383 AMAQI
25th Jul 2026404 AMAQI

21°C14/30°C

25th Jul 2026525 AMAQI
25th Jul 2026506 AMAQI
25th Jul 2026527 AMAQI
25th Jul 2026518 AMAQI
25th Jul 2026549 AMAQI
25th Jul 20265710 AMAQI
25th Jul 20264411 AMAQI
25th Jul 20265112 PMAQI
25th Jul 2026521 PMAQI
25th Jul 2026522 PMAQI
25th Jul 2026483 PMAQI
25th Jul 2026484 PMAQI
25th Jul 2026465 PMAQI
25th Jul 2026446 PMAQI
25th Jul 2026447 PMAQI
25th Jul 2026548 PMAQI
25th Jul 2026549 PMAQI
25th Jul 20265910 PMAQI
25th Jul 20266411 PMAQI
26th Jul 20266212 AMAQI
26th Jul 2026661 AMAQI
26th Jul 2026612 AMAQI
26th Jul 2026563 AMAQI
26th Jul 2026584 AMAQI

21°C15/31°C

26th Jul 2026575 AMAQI
26th Jul 2026646 AMAQI
26th Jul 2026447 AMAQI
26th Jul 2026488 AMAQI
26th Jul 2026489 AMAQI
26th Jul 20264610 AMAQI
26th Jul 20265511 AMAQI
26th Jul 20265512 PMAQI
26th Jul 2026561 PMAQI
26th Jul 2026562 PMAQI
26th Jul 2026543 PMAQI
26th Jul 2026574 PMAQI
26th Jul 2026625 PMAQI
26th Jul 2026596 PMAQI
26th Jul 2026627 PMAQI
26th Jul 2026578 PMAQI
26th Jul 2026589 PMAQI
26th Jul 20266010 PMAQI
26th Jul 20265811 PMAQI
27th Jul 20266112 AMAQI
27th Jul 2026581 AMAQI
27th Jul 2026612 AMAQI
27th Jul 2026603 AMAQI
27th Jul 2026584 AMAQI

28°C22/37°C

27th Jul 2026565 AMAQI
27th Jul 2026536 AMAQI
27th Jul 2026537 AMAQI
27th Jul 2026488 AMAQI
27th Jul 2026499 AMAQI
27th Jul 20265110 AMAQI
27th Jul 20265111 AMAQI
27th Jul 20265412 PMAQI
27th Jul 2026561 PMAQI
27th Jul 2026562 PMAQI
27th Jul 2026573 PMAQI
27th Jul 2026624 PMAQI
27th Jul 2026605 PMAQI
27th Jul 2026626 PMAQI
27th Jul 2026567 PMAQI
27th Jul 2026568 PMAQI
27th Jul 2026549 PMAQI
27th Jul 20265210 PMAQI
27th Jul 20265011 PMAQI
28th Jul 20265912 AMAQI
28th Jul 2026561 AMAQI
28th Jul 2026542 AMAQI
28th Jul 2026563 AMAQI
28th Jul 2026534 AMAQI

31°C24/40°C

28th Jul 2026485 AMAQI
28th Jul 2026486 AMAQI
28th Jul 2026507 AMAQI
28th Jul 2026528 AMAQI
28th Jul 2026589 AMAQI
28th Jul 20266010 AMAQI
28th Jul 20266411 AMAQI
28th Jul 20266012 PMAQI
28th Jul 2026621 PMAQI
28th Jul 2026562 PMAQI
28th Jul 2026543 PMAQI
28th Jul 2026484 PMAQI
28th Jul 2026505 PMAQI
28th Jul 2026526 PMAQI
28th Jul 2026387 PMAQI
28th Jul 2026468 PMAQI
28th Jul 2026429 PMAQI
28th Jul 20262510 PMAQI
28th Jul 20262511 PMAQI
29th Jul 20262312 AMAQI
29th Jul 2026271 AMAQI
29th Jul 2026362 AMAQI
29th Jul 2026253 AMAQI
29th Jul 2026254 AMAQI

25°C21/31°C

29th Jul 2026295 AMAQI
29th Jul 2026306 AMAQI
29th Jul 2026277 AMAQI
29th Jul 2026238 AMAQI
29th Jul 2026299 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20262111 AMAQI
29th Jul 20262912 PMAQI
29th Jul 2026251 PMAQI
29th Jul 2026362 PMAQI
29th Jul 2026273 PMAQI
29th Jul 2026344 PMAQI
29th Jul 2026335 PMAQI
29th Jul 2026316 PMAQI
29th Jul 2026317 PMAQI
29th Jul 2026318 PMAQI
29th Jul 2026389 PMAQI
29th Jul 20263110 PMAQI
29th Jul 20262911 PMAQI
30th Jul 20262912 AMAQI
30th Jul 2026331 AMAQI
30th Jul 2026292 AMAQI
30th Jul 2026273 AMAQI
30th Jul 2026294 AMAQI

24°C15/33°C

30th Jul 2026335 AMAQI
30th Jul 2026426 AMAQI
30th Jul 2026467 AMAQI
30th Jul 2026428 AMAQI
30th Jul 2026449 AMAQI
30th Jul 20262510 AMAQI
30th Jul 20262711 AMAQI
30th Jul 20263112 PMAQI
30th Jul 2026311 PMAQI
30th Jul 2026332 PMAQI
30th Jul 2026273 PMAQI
30th Jul 2026384 PMAQI
30th Jul 2026385 PMAQI
30th Jul 2026366 PMAQI
30th Jul 2026427 PMAQI
30th Jul 2026348 PMAQI
30th Jul 2026389 PMAQI
30th Jul 20264410 PMAQI
30th Jul 20264411 PMAQI
31st Jul 20264012 AMAQI
31st Jul 2026441 AMAQI
31st Jul 2026462 AMAQI
31st Jul 2026423 AMAQI
31st Jul 2026404 AMAQI

24°C14/34°C

31st Jul 2026425 AMAQI
31st Jul 2026466 AMAQI
31st Jul 2026477 AMAQI
31st Jul 2026408 AMAQI
31st Jul 2026389 AMAQI
31st Jul 20264010 AMAQI
31st Jul 20264211 AMAQI
31st Jul 20264412 PMAQI
31st Jul 2026531 PMAQI
31st Jul 2026422 PMAQI
31st Jul 2026273 PMAQI
31st Jul 2026384 PMAQI
31st Jul 2026405 PMAQI
31st Jul 2026426 PMAQI
31st Jul 2026467 PMAQI
31st Jul 2026558 PMAQI
31st Jul 2026529 PMAQI
31st Jul 20265710 PMAQI
31st Jul 20266411 PMAQI
1st Aug 20266012 AMAQI
1st Aug 2026511 AMAQI
1st Aug 2026502 AMAQI
1st Aug 2026423 AMAQI
1st Aug 2026464 AMAQI

21°C18/29°C

1st Aug 2026365 AMAQI
1st Aug 2026466 AMAQI
1st Aug 2026467 AMAQI
1st Aug 2026428 AMAQI
1st Aug 2026409 AMAQI
1st Aug 20264910 AMAQI
1st Aug 20265311 AMAQI
1st Aug 20264512 PMAQI
1st Aug 2026401 PMAQI
1st Aug 2026522 PMAQI
1st Aug 2026533 PMAQI
1st Aug 2026604 PMAQI
1st Aug 2026535 PMAQI
1st Aug 2026536 PMAQI
1st Aug 2026567 PMAQI
1st Aug 2026938 PMAQI
1st Aug 2026609 PMAQI
1st Aug 20265610 PMAQI
1st Aug 20265611 PMAQI
2nd Aug 20265612 AMAQI
2nd Aug 2026551 AMAQI
2nd Aug 2026582 AMAQI
2nd Aug 2026443 AMAQI
2nd Aug 2026444 AMAQI

20°C18/23°C

2nd Aug 2026465 AMAQI
2nd Aug 2026466 AMAQI
2nd Aug 2026447 AMAQI
2nd Aug 2026488 AMAQI
2nd Aug 2026469 AMAQI
2nd Aug 20264610 AMAQI
2nd Aug 20264411 AMAQI
2nd Aug 20264812 PMAQI
2nd Aug 2026501 PMAQI
2nd Aug 2026482 PMAQI
2nd Aug 2026503 PMAQI
2nd Aug 2026504 PMAQI
2nd Aug 2026525 PMAQI
2nd Aug 2026506 PMAQI
2nd Aug 2026457 PMAQI
2nd Aug 2026448 PMAQI
2nd Aug 2026499 PMAQI
2nd Aug 20264210 PMAQI
2nd Aug 20264511 PMAQI
3rd Aug 20264412 AMAQI
3rd Aug 2026461 AMAQI
3rd Aug 2026482 AMAQI
3rd Aug 2026443 AMAQI
3rd Aug 2026464 AMAQI

21°C17/29°C

3rd Aug 2026445 AMAQI
3rd Aug 2026336 AMAQI
3rd Aug 2026337 AMAQI
3rd Aug 2026318 AMAQI
3rd Aug 2026319 AMAQI
3rd Aug 20263110 AMAQI
3rd Aug 20263111 AMAQI
3rd Aug 20263312 PMAQI
3rd Aug 2026311 PMAQI
3rd Aug 2026332 PMAQI
3rd Aug 2026363 PMAQI
3rd Aug 2026404 PMAQI
3rd Aug 2026405 PMAQI
3rd Aug 2026406 PMAQI
3rd Aug 2026427 PMAQI
3rd Aug 2026428 PMAQI
3rd Aug 2026469 PMAQI
3rd Aug 20264410 PMAQI
3rd Aug 20264711 PMAQI
4th Aug 20265012 AMAQI
4th Aug 2026451 AMAQI
4th Aug 2026472 AMAQI
4th Aug 2026433 AMAQI
4th Aug 2026504 AMAQI

22°C13/31°C

4th Aug 2026485 AMAQI
4th Aug 2026466 AMAQI
4th Aug 2026507 AMAQI
4th Aug 2026498 AMAQI
4th Aug 2026489 AMAQI
4th Aug 20264410 AMAQI
4th Aug 20264611 AMAQI
4th Aug 20264212 PMAQI
4th Aug 2026461 PMAQI
4th Aug 2026482 PMAQI
4th Aug 2026493 PMAQI
4th Aug 2026504 PMAQI
4th Aug 2026505 PMAQI
4th Aug 2026516 PMAQI
4th Aug 2026527 PMAQI
4th Aug 2026528 PMAQI
4th Aug 2026499 PMAQI
4th Aug 20264810 PMAQI
4th Aug 20265211 PMAQI
5th Aug 20265012 AMAQI
5th Aug 2026501 AMAQI
5th Aug 2026532 AMAQI
5th Aug 2026513 AMAQI
5th Aug 2026524 AMAQI

24°C16/31°C

5th Aug 2026515 AMAQI
5th Aug 2026516 AMAQI
5th Aug 2026537 AMAQI
5th Aug 2026528 AMAQI
5th Aug 2026529 AMAQI
5th Aug 20265210 AMAQI
5th Aug 20265211 AMAQI
5th Aug 20265612 PMAQI
5th Aug 2026571 PMAQI
5th Aug 2026592 PMAQI
5th Aug 2026583 PMAQI
5th Aug 2026584 PMAQI
5th Aug 2026585 PMAQI
5th Aug 2026536 PMAQI
5th Aug 2026547 PMAQI
5th Aug 2026538 PMAQI
5th Aug 2026529 PMAQI
5th Aug 20265210 PMAQI
5th Aug 20265111 PMAQI
6th Aug 20265312 AMAQI
6th Aug 2026521 AMAQI
6th Aug 2026552 AMAQI
6th Aug 2026553 AMAQI
6th Aug 2026544 AMAQI

23°C21/28°C

6th Aug 2026565 AMAQI
6th Aug 2026586 AMAQI
6th Aug 2026597 AMAQI
6th Aug 2026588 AMAQI
6th Aug 2026599 AMAQI
6th Aug 20266010 AMAQI
6th Aug 20266211 AMAQI
6th Aug 20266412 PMAQI
6th Aug 2026621 PMAQI
6th Aug 2026592 PMAQI
6th Aug 2026563 PMAQI
6th Aug 2026534 PMAQI
6th Aug 2026515 PMAQI
6th Aug 2026486 PMAQI
6th Aug 2026517 PMAQI
6th Aug 2026518 PMAQI
6th Aug 2026529 PMAQI
6th Aug 20265310 PMAQI
6th Aug 20265311 PMAQI
7th Aug 20265612 AMAQI
7th Aug 2026581 AMAQI
7th Aug 2026552 AMAQI
7th Aug 2026533 AMAQI
7th Aug 2026494 AMAQI

22°C17/30°C

7th Aug 2026405 AMAQI
7th Aug 2026406 AMAQI
7th Aug 2026477 AMAQI
7th Aug 2026548 AMAQI
7th Aug 2026589 AMAQI
7th Aug 20264810 AMAQI
7th Aug 20264811 AMAQI
7th Aug 20264712 PMAQI
7th Aug 2026481 PMAQI
7th Aug 2026442 PMAQI
7th Aug 2026433 PMAQI
7th Aug 2026444 PMAQI
7th Aug 2026405 PMAQI
7th Aug 2026466 PMAQI
7th Aug 2026527 PMAQI
7th Aug 2026568 PMAQI
7th Aug 2026589 PMAQI
7th Aug 20265910 PMAQI
7th Aug 20265711 PMAQI
8th Aug 20265712 AMAQI
8th Aug 2026421 AMAQI
8th Aug 2026442 AMAQI
8th Aug 2026463 AMAQI
8th Aug 2026484 AMAQI

24°C20/33°C

8th Aug 2026495 AMAQI
8th Aug 2026496 AMAQI
8th Aug 2026487 AMAQI
8th Aug 2026468 AMAQI
8th Aug 2026469 AMAQI
8th Aug 20265010 AMAQI
8th Aug 20264611 AMAQI
8th Aug 20264612 PMAQI
8th Aug 2026421 PMAQI
8th Aug 2026482 PMAQI
8th Aug 2026423 PMAQI
8th Aug 2026504 PMAQI
8th Aug 2026345 PMAQI
8th Aug 2026286 PMAQI
8th Aug 2026387 PMAQI
8th Aug 2026328 PMAQI
8th Aug 2026489 PMAQI
8th Aug 20265910 PMAQI
8th Aug 20263011 PMAQI
9th Aug 20262712 AMAQI
9th Aug 2026401 AMAQI
9th Aug 2026312 AMAQI
9th Aug 2026303 AMAQI
9th Aug 2026314 AMAQI

24°C18/33°C

9th Aug 2026285 AMAQI
9th Aug 2026386 AMAQI
9th Aug 2026427 AMAQI
9th Aug 2026498 AMAQI
9th Aug 2026429 AMAQI
9th Aug 20265610 AMAQI
9th Aug 20264011 AMAQI
9th Aug 20263412 PMAQI
9th Aug 2026271 PMAQI
9th Aug 2026382 PMAQI
9th Aug 2026463 PMAQI
9th Aug 2026444 PMAQI
9th Aug 2026465 PMAQI
9th Aug 2026486 PMAQI
9th Aug 2026387 PMAQI
9th Aug 20261308 PMAQI
9th Aug 2026529 PMAQI
9th Aug 20263610 PMAQI
9th Aug 20264611 PMAQI
10th Aug 20263612 AMAQI
10th Aug 2026331 AMAQI
10th Aug 2026382 AMAQI
10th Aug 2026503 AMAQI
10th Aug 2026444 AMAQI

23°C15/33°C

10th Aug 2026485 AMAQI
5 AM
10th Aug 2026546 AMAQI
10th Aug 2026567 AMAQI
10th Aug 2026488 AMAQI
10th Aug 2026589 AMAQI
10th Aug 20264710 AMAQI
10th Aug 20264511 AMAQI
10th Aug 20265112 PMAQI
12 PM
10th Aug 2026521 PMAQI
10th Aug 2026562 PMAQI
10th Aug 2026523 PMAQI
10th Aug 2026574 PMAQI
10th Aug 2026565 PMAQI
10th Aug 2026566 PMAQI
10th Aug 2026567 PMAQI
10th Aug 2026568 PMAQI
8 PM
10th Aug 2026579 PMAQI
10th Aug 20265510 PMAQI
10th Aug 20265611 PMAQI
12 AM
4 AM

26°C21/35°C

Day time
Avg. Highest Time
5 AM - 10 AM

70AQI

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

52AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 10 AM (Avg. 70), while the lowest AQI was between 6 PM to 6 PM (Avg. 52).
Night time
Avg. Highest Time
1 AM - 2 AM

68AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
10 PM

58AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 2 AM (Avg. 68), while the lowest AQI was between 10 PM to 10 PM (Avg. 58).

2026 Days Vs Air Quality

Rockford, Illinois, United States

2026

78%

169

21%

45

0.9%

2

0.4%

1

0.4%

1

Total number of days with different AQI categories in last 222 days in 2026 (143 days remaining)

Good
169 Days
Moderate
45 Days
Poor
2 Days
Unhealthy
1 Days
Severe
1 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 78%

Health Risk Level:

Low

In 2026, 78% of 222 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

Rockford, 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
11AQI (US)
2nd January 2026
22AQI (US)
3rd January 2026
22AQI (US)
4th January 2026
41AQI (US)
5th January 2026
70AQI (US)
6th January 2026
89AQI (US)
7th January 2026
54AQI (US)
8th January 2026
44AQI (US)
9th January 2026
24AQI (US)
10th January 2026
35AQI (US)
11th January 2026
22AQI (US)
12th January 2026
22AQI (US)
13th January 2026
23AQI (US)
14th January 2026
12AQI (US)
15th January 2026
13AQI (US)
16th January 2026
17AQI (US)
17th January 2026
16AQI (US)
18th January 2026
15AQI (US)
19th January 2026
17AQI (US)
20th January 2026
25AQI (US)
21st January 2026
34AQI (US)
22nd January 2026
50AQI (US)
23rd January 2026
55AQI (US)
24th January 2026
43AQI (US)
25th January 2026
44AQI (US)
26th January 2026
39AQI (US)
27th January 2026
34AQI (US)
28th January 2026
38AQI (US)
29th January 2026
47AQI (US)
30th January 2026
56AQI (US)
31st January 2026
38AQI (US)
1st February 2026
37AQI (US)
2nd February 2026
48AQI (US)
3rd February 2026
41AQI (US)
4th February 2026
34AQI (US)
5th February 2026
56AQI (US)
6th February 2026
50AQI (US)
7th February 2026
36AQI (US)
8th February 2026
46AQI (US)
9th February 2026
67AQI (US)
10th February 2026
52AQI (US)
11th February 2026
32AQI (US)
12th February 2026
34AQI (US)
13th February 2026
72AQI (US)
14th February 2026
76AQI (US)
15th February 2026
64AQI (US)
16th February 2026
47AQI (US)
17th February 2026
70AQI (US)
18th February 2026
52AQI (US)
19th February 2026
31AQI (US)
20th February 2026
39AQI (US)
21st February 2026
33AQI (US)
22nd February 2026
37AQI (US)
23rd February 2026
36AQI (US)
24th February 2026
42AQI (US)
25th February 2026
36AQI (US)
26th February 2026
40AQI (US)
27th February 2026
50AQI (US)
28th February 2026
33AQI (US)
1st March 2026
34AQI (US)
2nd March 2026
40AQI (US)
3rd March 2026
55AQI (US)
4th March 2026
80AQI (US)
5th March 2026
85AQI (US)
6th March 2026
62AQI (US)
7th March 2026
37AQI (US)
8th March 2026
41AQI (US)
9th March 2026
36AQI (US)
10th March 2026
35AQI (US)
11th March 2026
40AQI (US)
12th March 2026
38AQI (US)
13th March 2026
39AQI (US)
14th March 2026
36AQI (US)
15th March 2026
30AQI (US)
16th March 2026
37AQI (US)
17th March 2026
34AQI (US)
18th March 2026
45AQI (US)
19th March 2026
79AQI (US)
20th March 2026
57AQI (US)
21st March 2026
68AQI (US)
22nd March 2026
38AQI (US)
23rd March 2026
40AQI (US)
24th March 2026
37AQI (US)
25th March 2026
47AQI (US)
26th March 2026
50AQI (US)
27th March 2026
29AQI (US)
28th March 2026
30AQI (US)
29th March 2026
37AQI (US)
30th March 2026
54AQI (US)
31st March 2026
45AQI (US)
1st April 2026
32AQI (US)
2nd April 2026
28AQI (US)
3rd April 2026
32AQI (US)
4th April 2026
32AQI (US)
5th April 2026
30AQI (US)
6th April 2026
32AQI (US)
7th April 2026
26AQI (US)
8th April 2026
29AQI (US)
9th April 2026
33AQI (US)
10th April 2026
41AQI (US)
11th April 2026
62AQI (US)
12th April 2026
51AQI (US)
13th April 2026
38AQI (US)
14th April 2026
34AQI (US)
15th April 2026
30AQI (US)
16th April 2026
35AQI (US)
17th April 2026
18th April 2026
29AQI (US)
19th April 2026
33AQI (US)
20th April 2026
28AQI (US)
21st April 2026
27AQI (US)
22nd April 2026
23rd April 2026
35AQI (US)
24th April 2026
23AQI (US)
25th April 2026
30AQI (US)
26th April 2026
43AQI (US)
27th April 2026
48AQI (US)
28th April 2026
25AQI (US)
29th April 2026
27AQI (US)
30th April 2026
33AQI (US)
1st May 2026
35AQI (US)
2nd May 2026
29AQI (US)
3rd May 2026
27AQI (US)
4th May 2026
35AQI (US)
5th May 2026
33AQI (US)
6th May 2026
24AQI (US)
7th May 2026
23AQI (US)
8th May 2026
32AQI (US)
9th May 2026
10th May 2026
30AQI (US)
11th May 2026
25AQI (US)
12th May 2026
24AQI (US)
13th May 2026
27AQI (US)
14th May 2026
20AQI (US)
15th May 2026
25AQI (US)
16th May 2026
30AQI (US)
17th May 2026
63AQI (US)
18th May 2026
42AQI (US)
19th May 2026
40AQI (US)
20th May 2026
50AQI (US)
21st May 2026
42AQI (US)
22nd May 2026
35AQI (US)
23rd May 2026
34AQI (US)
24th May 2026
48AQI (US)
25th May 2026
42AQI (US)
26th May 2026
28AQI (US)
27th May 2026
21AQI (US)
28th May 2026
16AQI (US)
29th May 2026
21AQI (US)
30th May 2026
28AQI (US)
31st May 2026
29AQI (US)
1st June 2026
27AQI (US)
2nd June 2026
20AQI (US)
3rd June 2026
21AQI (US)
4th June 2026
27AQI (US)
5th June 2026
52AQI (US)
6th June 2026
31AQI (US)
7th June 2026
37AQI (US)
8th June 2026
48AQI (US)
9th June 2026
33AQI (US)
10th June 2026
33AQI (US)
11th June 2026
29AQI (US)
12th June 2026
25AQI (US)
13th June 2026
18AQI (US)
14th June 2026
22AQI (US)
15th June 2026
24AQI (US)
16th June 2026
25AQI (US)
17th June 2026
29AQI (US)
18th June 2026
26AQI (US)
19th June 2026
21AQI (US)
20th June 2026
24AQI (US)
21st June 2026
28AQI (US)
22nd June 2026
31AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
32AQI (US)
25th June 2026
20AQI (US)
26th June 2026
28AQI (US)
27th June 2026
48AQI (US)
28th June 2026
57AQI (US)
29th June 2026
61AQI (US)
30th June 2026
56AQI (US)
1st July 2026
54AQI (US)
2nd July 2026
35AQI (US)
3rd July 2026
38AQI (US)
4th July 2026
58AQI (US)
5th July 2026
66AQI (US)
6th July 2026
58AQI (US)
7th July 2026
53AQI (US)
8th July 2026
58AQI (US)
9th July 2026
47AQI (US)
10th July 2026
50AQI (US)
11th July 2026
55AQI (US)
12th July 2026
56AQI (US)
13th July 2026
56AQI (US)
14th July 2026
50AQI (US)
15th July 2026
60AQI (US)
16th July 2026
220AQI (US)
17th July 2026
196AQI (US)
18th July 2026
59AQI (US)
19th July 2026
149AQI (US)
20th July 2026
116AQI (US)
21st July 2026
49AQI (US)
22nd July 2026
30AQI (US)
23rd July 2026
33AQI (US)
24th July 2026
39AQI (US)
25th July 2026
49AQI (US)
26th July 2026
57AQI (US)
27th July 2026
56AQI (US)
28th July 2026
51AQI (US)
29th July 2026
29AQI (US)
30th July 2026
35AQI (US)
31st July 2026
44AQI (US)
1st August 2026
52AQI (US)
2nd August 2026
48AQI (US)
3rd August 2026
39AQI (US)
4th August 2026
48AQI (US)
5th August 2026
53AQI (US)
6th August 2026
56AQI (US)
7th August 2026
50AQI (US)
8th August 2026
44AQI (US)
9th August 2026
43AQI (US)
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

35AQI (US)

46AQI (US)

46AQI (US)

34AQI (US)

32AQI (US)

32AQI (US)

65AQI (US)

48AQI (US)

No. of days

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

202642AQI (US)

26
5
20
8
23
8
26
2
29
1
26
4
13
14
2
1
1
6
3
169
45
2
1
1

Highest AQI (US) recorded in

July

65AQI (US)

Lowest AQI (US) recorded in

June

32AQI (US)

202537AQI (US)

30
1
27
1
30
1
30
31
15
15
20
10
1
19
9
3
22
8
25
6
22
8
18
13
289
72
4

Highest AQI (US) recorded in

June

50AQI (US)

Lowest AQI (US) recorded in

May

25AQI (US)

202430AQI (US)

29
2
23
6
31
30
31
28
1
30
27
4
30
29
2
29
1
30
1
347
17

Highest AQI (US) recorded in

August

37AQI (US)

Lowest AQI (US) recorded in

April

22AQI (US)

202341AQI (US)

23
8
25
3
25
5
26
3
29
2
8
17
2
2
1
23
5
3
16
15
26
4
25
6
25
4
27
4
278
76
5
2
1

Highest AQI (US) recorded in

June

81AQI (US)

Lowest AQI (US) recorded in

December

33AQI (US)

202234AQI (US)

26
4
17
4
27
4
29
1
28
3
27
3
22
2
2
29
24
7
24
6
25
6
280
40

Highest AQI (US) recorded in

November

39AQI (US)

Lowest AQI (US) recorded in

September

28AQI (US)

202140AQI (US)

19
10
8
10
2
1
18
8
24
1
29
2
29
1
17
14
22
8
30
29
2
20
8
23
8
268
72
2
1

Highest AQI (US) recorded in

February

70AQI (US)

Lowest AQI (US) recorded in

September

30AQI (US)

202037AQI (US)

11
2
19
1
17
28
2
24
7
27
4
25
4
28
2
20
8
20
9
219
39

Highest AQI (US) recorded in

December

44AQI (US)

Lowest AQI (US) recorded in

May

30AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2026(Avg.)
42AQI (US)
Least Polluted Year Recorded
2024(Avg.)
30AQI (US)

Rockford's annual 2026 AQI (US) (42) shows an average percentage change of 16.3% (worsened AQI (US)) compared to previous years: 2020 (37), 2021 (40), 2022 (34), 2023 (41), 2024 (30), 2025 (37).