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  4. Cook County

Cook County

Illinois

2026-09-12 05:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.7
O3
μg/m³
58
PM10
μg/m³
15.1
Weather
  • ℃
  • ℉
21℃
78%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 43
Berwyn Township
AQI 35
Bloom Township
AQI 33
Bremen Township
AQI 33
Calumet Township
AQI 33
Chicago
AQI 34
Cicero Township
AQI 35
Elk Grove Township
AQI 42
Evanston Township
AQI 34
Hanover Township
AQI 43
Lemont Township
AQI 54
Leyden Township
AQI 45
Lyons Township
AQI 36
Maine Township
AQI 38
New Trier Township
AQI 34
Niles Township
AQI 37
Northfield Township
AQI 35
Norwood Park Township
AQI 47
Oak Park Township
AQI 35
Orland Township
AQI 33
Palatine Township
AQI 39
Palos Township
AQI 35
Proviso Township
AQI 41
Rich Township
AQI 33
River Forest Township
AQI 35
Riverside Township
AQI 36
Schaumburg Township
AQI 47
Stickney Township
AQI 33
Thornton Township
AQI 32
Wheeling Township
AQI 38
Worth Township
AQI 32
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 30
Hometown
AQI 30
Oak Lawn
AQI 30
Burbank
AQI 30
Merrionette Park
AQI 33
Bedford Park
AQI 30
Chicago Ridge
AQI 33
Alsip
AQI 33
Calumet Park
AQI 33
Bridgeview
AQI 36
Blue Island
AQI 33