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  4. Cook County

Cook County

Illinois

2026-05-25 01:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
9.8
O3
μg/m³
89.4
PM10
μg/m³
15
Weather
  • ℃
  • ℉
18℃
83%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 41
Berwyn Township
AQI 40
Bloom Township
AQI 57
Bremen Township
AQI 55
Calumet Township
AQI 55
Chicago
AQI 58
Cicero Township
AQI 40
Elk Grove Township
AQI 52
Evanston Township
AQI 52
Hanover Township
AQI 41
Lemont Township
AQI 48
Leyden Township
AQI 55
Lyons Township
AQI 54
Maine Township
AQI 40
New Trier Township
AQI 52
Niles Township
AQI 41
Northfield Township
AQI 50
Norwood Park Township
AQI 57
Oak Park Township
AQI 40
Orland Township
AQI 54
Palatine Township
AQI 40
Palos Township
AQI 54
Proviso Township
AQI 54
Rich Township
AQI 57
River Forest Township
AQI 40
Riverside Township
AQI 54
Schaumburg Township
AQI 57
Stickney Township
AQI 56
Thornton Township
AQI 59
Wheeling Township
AQI 40
Worth Township
AQI 56
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 58
Hometown
AQI 58
Oak Lawn
AQI 58
Burbank
AQI 58
Merrionette Park
AQI 54
Bedford Park
AQI 58
Chicago Ridge
AQI 54
Alsip
AQI 54
Calumet Park
AQI 54
Bridgeview
AQI 54
Blue Island
AQI 54