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  4. Cook County

Cook County

Illinois

2026-05-17 12:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
9.8
O3
μg/m³
72.4
PM10
μg/m³
13.5
Weather
  • ℃
  • ℉
22℃
85%
13 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 45
Berwyn Township
AQI 54
Bloom Township
AQI 56
Bremen Township
AQI 53
Calumet Township
AQI 54
Chicago
AQI 58
Cicero Township
AQI 54
Elk Grove Township
AQI 52
Evanston Township
AQI 34
Hanover Township
AQI 45
Lemont Township
AQI 48
Leyden Township
AQI 55
Lyons Township
AQI 52
Maine Township
AQI 44
New Trier Township
AQI 32
Niles Township
AQI 49
Northfield Township
AQI 47
Norwood Park Township
AQI 55
Oak Park Township
AQI 54
Orland Township
AQI 52
Palatine Township
AQI 44
Palos Township
AQI 52
Proviso Township
AQI 54
Rich Township
AQI 56
River Forest Township
AQI 54
Riverside Township
AQI 52
Schaumburg Township
AQI 55
Stickney Township
AQI 54
Thornton Township
AQI 57
Wheeling Township
AQI 44
Worth Township
AQI 54
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 56
Hometown
AQI 56
Oak Lawn
AQI 56
Burbank
AQI 56
Merrionette Park
AQI 52
Bedford Park
AQI 56
Chicago Ridge
AQI 52
Alsip
AQI 52
Calumet Park
AQI 52
Bridgeview
AQI 52
Blue Island
AQI 52