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  4. Cook County

Cook County

Illinois

2026-09-08 22:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
120.5
PM10
μg/m³
30.2
PM2.5
μg/m³
7.6
Weather
  • ℃
  • ℉
29℃
62%
10 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
Places included
Barrington Township
AQI 31
Berwyn Township
AQI 11
Bloom Township
AQI 26
Bremen Township
AQI 11
Calumet Township
AQI 26
Chicago
AQI 39
Cicero Township
AQI 33
Elk Grove Township
AQI 31
Evanston Township
AQI 51
Hanover Township
AQI 31
Lemont Township
AQI 35
Leyden Township
AQI 31
Lyons Township
AQI 11
Maine Township
AQI 39
New Trier Township
AQI 31
Niles Township
AQI 31
Northfield Township
AQI 44
Norwood Park Township
AQI 31
Oak Park Township
AQI 31
Orland Township
AQI 11
Palatine Township
AQI 31
Palos Township
AQI 11
Proviso Township
AQI 31
Rich Township
AQI 12
River Forest Township
AQI 31
Riverside Township
AQI 11
Schaumburg Township
AQI 31
Stickney Township
AQI 10
Thornton Township
AQI 26
Wheeling Township
AQI 31
Worth Township
AQI 33
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 10
Hometown
AQI 10
Oak Lawn
AQI 10
Burbank
AQI 10
Merrionette Park
AQI 11
Bedford Park
AQI 10
Chicago Ridge
AQI 11
Alsip
AQI 33
Calumet Park
AQI 11
Bridgeview
AQI 11
Blue Island
AQI 11