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  4. Cook County

Cook County

Illinois

2026-05-18 09:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
10.8
O3
μg/m³
91.7
PM10
μg/m³
20
Weather
  • ℃
  • ℉
23℃
74%
32 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 54
Berwyn Township
AQI 54
Bloom Township
AQI 55
Bremen Township
AQI 53
Calumet Township
AQI 53
Chicago
AQI 56
Cicero Township
AQI 54
Elk Grove Township
AQI 55
Evanston Township
AQI 50
Hanover Township
AQI 54
Lemont Township
AQI 53
Leyden Township
AQI 56
Lyons Township
AQI 54
Maine Township
AQI 54
New Trier Township
AQI 50
Niles Township
AQI 54
Northfield Township
AQI 51
Norwood Park Township
AQI 56
Oak Park Township
AQI 54
Orland Township
AQI 52
Palatine Township
AQI 54
Palos Township
AQI 53
Proviso Township
AQI 55
Rich Township
AQI 55
River Forest Township
AQI 54
Riverside Township
AQI 54
Schaumburg Township
AQI 56
Stickney Township
AQI 55
Thornton Township
AQI 56
Wheeling Township
AQI 54
Worth Township
AQI 53
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 55
Hometown
AQI 55
Oak Lawn
AQI 55
Burbank
AQI 55
Merrionette Park
AQI 52
Bedford Park
AQI 55
Chicago Ridge
AQI 52
Alsip
AQI 52
Calumet Park
AQI 52
Bridgeview
AQI 54
Blue Island
AQI 52