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  4. Cook County

Cook County

Illinois

2026-05-23 18:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.9
O3
μg/m³
76
PM10
μg/m³
11
Weather
  • ℃
  • ℉
21℃
77%
7 kph
7 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 17
Berwyn Township
AQI 43
Bloom Township
AQI 38
Bremen Township
AQI 49
Calumet Township
AQI 46
Chicago
AQI 42
Cicero Township
AQI 43
Elk Grove Township
AQI 37
Evanston Township
AQI 38
Hanover Township
AQI 17
Lemont Township
AQI 38
Leyden Township
AQI 39
Lyons Township
AQI 42
Maine Township
AQI 34
New Trier Township
AQI 38
Niles Township
AQI 35
Northfield Township
AQI 37
Norwood Park Township
AQI 39
Oak Park Township
AQI 43
Orland Township
AQI 50
Palatine Township
AQI 28
Palos Township
AQI 45
Proviso Township
AQI 41
Rich Township
AQI 38
River Forest Township
AQI 43
Riverside Township
AQI 42
Schaumburg Township
AQI 39
Stickney Township
AQI 46
Thornton Township
AQI 39
Wheeling Township
AQI 34
Worth Township
AQI 50
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 50
Hometown
AQI 50
Oak Lawn
AQI 50
Burbank
AQI 50
Merrionette Park
AQI 50
Bedford Park
AQI 50
Chicago Ridge
AQI 50
Alsip
AQI 50
Calumet Park
AQI 50
Bridgeview
AQI 42
Blue Island
AQI 50