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  4. Cook County

Cook County

Illinois

2026-09-12 01:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
87
PM10
μg/m³
11.6
PM2.5
μg/m³
7.2
Weather
  • ℃
  • ℉
23℃
73%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
Places included
Barrington Township
AQI 11
Berwyn Township
AQI 8
Bloom Township
AQI 15
Bremen Township
AQI 14
Calumet Township
AQI 15
Chicago
AQI 31
Cicero Township
AQI 25
Elk Grove Township
AQI 11
Evanston Township
AQI 34
Hanover Township
AQI 11
Lemont Township
AQI 26
Leyden Township
AQI 14
Lyons Township
AQI 10
Maine Township
AQI 41
New Trier Township
AQI 11
Niles Township
AQI 11
Northfield Township
AQI 31
Norwood Park Township
AQI 12
Oak Park Township
AQI 11
Orland Township
AQI 14
Palatine Township
AQI 11
Palos Township
AQI 12
Proviso Township
AQI 11
Rich Township
AQI 15
River Forest Township
AQI 11
Riverside Township
AQI 10
Schaumburg Township
AQI 12
Stickney Township
AQI 10
Thornton Township
AQI 15
Wheeling Township
AQI 11
Worth Township
AQI 20
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 9
Hometown
AQI 9
Oak Lawn
AQI 9
Burbank
AQI 9
Merrionette Park
AQI 14
Bedford Park
AQI 9
Chicago Ridge
AQI 14
Alsip
AQI 20
Calumet Park
AQI 14
Bridgeview
AQI 10
Blue Island
AQI 14