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  4. Cook County

Cook County

Illinois

2026-09-11 13:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
22.9
PM2.5
μg/m³
9.9
O3
μg/m³
15.8
Weather
  • ℃
  • ℉
20℃
72%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • PM2.5
  • O3
Places included
Barrington Township
AQI 13
Berwyn Township
AQI 34
Bloom Township
AQI 17
Bremen Township
AQI 20
Calumet Township
AQI 17
Chicago
AQI 17
Cicero Township
AQI 34
Elk Grove Township
AQI 16
Evanston Township
AQI 24
Hanover Township
AQI 13
Lemont Township
AQI 34
Leyden Township
AQI 31
Lyons Township
AQI 34
Maine Township
AQI 13
New Trier Township
AQI 13
Niles Township
AQI 13
Northfield Township
AQI 13
Norwood Park Township
AQI 34
Oak Park Township
AQI 34
Orland Township
AQI 29
Palatine Township
AQI 13
Palos Township
AQI 34
Proviso Township
AQI 34
Rich Township
AQI 17
River Forest Township
AQI 34
Riverside Township
AQI 34
Schaumburg Township
AQI 23
Stickney Township
AQI 34
Thornton Township
AQI 17
Wheeling Township
AQI 13
Worth Township
AQI 30
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 17
Hometown
AQI 34
Oak Lawn
AQI 34
Burbank
AQI 34
Merrionette Park
AQI 17
Bedford Park
AQI 34
Chicago Ridge
AQI 34
Alsip
AQI 34
Calumet Park
AQI 17
Bridgeview
AQI 34
Blue Island
AQI 17