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  4. Cook County

Cook County

Illinois

2026-05-18 07:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
11.5
O3
μg/m³
113.7
PM10
μg/m³
20.8
Weather
  • ℃
  • ℉
23℃
68%
32 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 55
Berwyn Township
AQI 55
Bloom Township
AQI 54
Bremen Township
AQI 53
Calumet Township
AQI 53
Chicago
AQI 56
Cicero Township
AQI 55
Elk Grove Township
AQI 58
Evanston Township
AQI 57
Hanover Township
AQI 55
Lemont Township
AQI 56
Leyden Township
AQI 59
Lyons Township
AQI 55
Maine Township
AQI 57
New Trier Township
AQI 52
Niles Township
AQI 56
Northfield Township
AQI 57
Norwood Park Township
AQI 60
Oak Park Township
AQI 55
Orland Township
AQI 53
Palatine Township
AQI 56
Palos Township
AQI 54
Proviso Township
AQI 57
Rich Township
AQI 54
River Forest Township
AQI 55
Riverside Township
AQI 55
Schaumburg Township
AQI 60
Stickney Township
AQI 55
Thornton Township
AQI 55
Wheeling Township
AQI 57
Worth Township
AQI 53
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 55
Hometown
AQI 55
Oak Lawn
AQI 55
Burbank
AQI 55
Merrionette Park
AQI 53
Bedford Park
AQI 55
Chicago Ridge
AQI 53
Alsip
AQI 53
Calumet Park
AQI 53
Bridgeview
AQI 55
Blue Island
AQI 53