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  4. Cook County

Cook County

Illinois

2026-09-11 01:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
67.9
PM10
μg/m³
10.1
PM2.5
μg/m³
4.4
Weather
  • ℃
  • ℉
20℃
75%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
Places included
Barrington Township
AQI 11
Berwyn Township
AQI 6
Bloom Township
AQI 6
Bremen Township
AQI 7
Calumet Township
AQI 7
Chicago
AQI 21
Cicero Township
AQI 21
Elk Grove Township
AQI 11
Evanston Township
AQI 29
Hanover Township
AQI 11
Lemont Township
AQI 21
Leyden Township
AQI 12
Lyons Township
AQI 8
Maine Township
AQI 25
New Trier Township
AQI 11
Niles Township
AQI 11
Northfield Township
AQI 21
Norwood Park Township
AQI 11
Oak Park Township
AQI 11
Orland Township
AQI 7
Palatine Township
AQI 11
Palos Township
AQI 8
Proviso Township
AQI 11
Rich Township
AQI 6
River Forest Township
AQI 11
Riverside Township
AQI 8
Schaumburg Township
AQI 11
Stickney Township
AQI 8
Thornton Township
AQI 6
Wheeling Township
AQI 11
Worth Township
AQI 23
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 8
Hometown
AQI 8
Oak Lawn
AQI 8
Burbank
AQI 8
Merrionette Park
AQI 7
Bedford Park
AQI 8
Chicago Ridge
AQI 7
Alsip
AQI 23
Calumet Park
AQI 7
Bridgeview
AQI 8
Blue Island
AQI 7