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  4. Cook County

Cook County

Illinois

2026-05-17 13:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
11.2
O3
μg/m³
85.8
PM10
μg/m³
11
Weather
  • ℃
  • ℉
23℃
79%
19 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 52
Berwyn Township
AQI 58
Bloom Township
AQI 61
Bremen Township
AQI 57
Calumet Township
AQI 58
Chicago
AQI 66
Cicero Township
AQI 58
Elk Grove Township
AQI 52
Evanston Township
AQI 49
Hanover Township
AQI 52
Lemont Township
AQI 54
Leyden Township
AQI 60
Lyons Township
AQI 55
Maine Township
AQI 39
New Trier Township
AQI 25
Niles Township
AQI 46
Northfield Township
AQI 46
Norwood Park Township
AQI 60
Oak Park Township
AQI 58
Orland Township
AQI 57
Palatine Township
AQI 42
Palos Township
AQI 55
Proviso Township
AQI 58
Rich Township
AQI 61
River Forest Township
AQI 58
Riverside Township
AQI 55
Schaumburg Township
AQI 60
Stickney Township
AQI 57
Thornton Township
AQI 65
Wheeling Township
AQI 35
Worth Township
AQI 58
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 59
Hometown
AQI 59
Oak Lawn
AQI 59
Burbank
AQI 59
Merrionette Park
AQI 57
Bedford Park
AQI 59
Chicago Ridge
AQI 57
Alsip
AQI 57
Calumet Park
AQI 57
Bridgeview
AQI 55
Blue Island
AQI 57