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  4. Cook County

Cook County

Illinois

2026-09-13 09:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
17
O3
μg/m³
45.7
PM2.5
μg/m³
5.6
Weather
  • ℃
  • ℉
18℃
73%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
Places included
Barrington Township
AQI 14
Berwyn Township
AQI 18
Bloom Township
AQI 20
Bremen Township
AQI 20
Calumet Township
AQI 20
Chicago
AQI 20
Cicero Township
AQI 18
Elk Grove Township
AQI 14
Evanston Township
AQI 18
Hanover Township
AQI 14
Lemont Township
AQI 18
Leyden Township
AQI 18
Lyons Township
AQI 18
Maine Township
AQI 14
New Trier Township
AQI 14
Niles Township
AQI 14
Northfield Township
AQI 14
Norwood Park Township
AQI 18
Oak Park Township
AQI 18
Orland Township
AQI 19
Palatine Township
AQI 14
Palos Township
AQI 18
Proviso Township
AQI 18
Rich Township
AQI 20
River Forest Township
AQI 18
Riverside Township
AQI 18
Schaumburg Township
AQI 14
Stickney Township
AQI 18
Thornton Township
AQI 20
Wheeling Township
AQI 14
Worth Township
AQI 19
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 20
Hometown
AQI 18
Oak Lawn
AQI 18
Burbank
AQI 18
Merrionette Park
AQI 20
Bedford Park
AQI 18
Chicago Ridge
AQI 18
Alsip
AQI 18
Calumet Park
AQI 20
Bridgeview
AQI 18
Blue Island
AQI 20