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  4. Cook County

Cook County

Illinois

2026-05-18 08:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
11
O3
μg/m³
108.5
PM10
μg/m³
20.4
Weather
  • ℃
  • ℉
23℃
68%
32 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 56
Berwyn Township
AQI 54
Bloom Township
AQI 54
Bremen Township
AQI 52
Calumet Township
AQI 53
Chicago
AQI 55
Cicero Township
AQI 54
Elk Grove Township
AQI 57
Evanston Township
AQI 51
Hanover Township
AQI 56
Lemont Township
AQI 54
Leyden Township
AQI 57
Lyons Township
AQI 54
Maine Township
AQI 56
New Trier Township
AQI 51
Niles Township
AQI 56
Northfield Township
AQI 53
Norwood Park Township
AQI 58
Oak Park Township
AQI 54
Orland Township
AQI 52
Palatine Township
AQI 56
Palos Township
AQI 53
Proviso Township
AQI 55
Rich Township
AQI 54
River Forest Township
AQI 54
Riverside Township
AQI 54
Schaumburg Township
AQI 58
Stickney Township
AQI 54
Thornton Township
AQI 55
Wheeling Township
AQI 56
Worth Township
AQI 53
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 54
Hometown
AQI 54
Oak Lawn
AQI 54
Burbank
AQI 54
Merrionette Park
AQI 52
Bedford Park
AQI 54
Chicago Ridge
AQI 52
Alsip
AQI 52
Calumet Park
AQI 52
Bridgeview
AQI 54
Blue Island
AQI 52