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  4. Cook County

Cook County

Illinois

2026-05-18 14:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
12.8
O3
μg/m³
61.8
PM10
μg/m³
17
Weather
  • ℃
  • ℉
26℃
76%
26 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 56
Berwyn Township
AQI 56
Bloom Township
AQI 57
Bremen Township
AQI 54
Calumet Township
AQI 54
Chicago
AQI 59
Cicero Township
AQI 56
Elk Grove Township
AQI 62
Evanston Township
AQI 53
Hanover Township
AQI 56
Lemont Township
AQI 55
Leyden Township
AQI 66
Lyons Township
AQI 62
Maine Township
AQI 55
New Trier Township
AQI 53
Niles Township
AQI 55
Northfield Township
AQI 54
Norwood Park Township
AQI 69
Oak Park Township
AQI 56
Orland Township
AQI 53
Palatine Township
AQI 55
Palos Township
AQI 59
Proviso Township
AQI 64
Rich Township
AQI 57
River Forest Township
AQI 56
Riverside Township
AQI 62
Schaumburg Township
AQI 69
Stickney Township
AQI 59
Thornton Township
AQI 57
Wheeling Township
AQI 55
Worth Township
AQI 55
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 53
Bedford Park
AQI 56
Chicago Ridge
AQI 53
Alsip
AQI 54
Calumet Park
AQI 53
Bridgeview
AQI 62
Blue Island
AQI 53