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  4. Cook County

Cook County

Illinois

2026-05-23 22:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
83.8
PM10
μg/m³
12
PM2.5
μg/m³
6.9
Weather
  • ℃
  • ℉
17℃
82%
22 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
Places included
Barrington Township
AQI 12
Berwyn Township
AQI 10
Bloom Township
AQI 23
Bremen Township
AQI 10
Calumet Township
AQI 13
Chicago
AQI 27
Cicero Township
AQI 24
Elk Grove Township
AQI 12
Evanston Township
AQI 28
Hanover Township
AQI 12
Lemont Township
AQI 33
Leyden Township
AQI 22
Lyons Township
AQI 8
Maine Township
AQI 25
New Trier Township
AQI 12
Niles Township
AQI 12
Northfield Township
AQI 28
Norwood Park Township
AQI 12
Oak Park Township
AQI 12
Orland Township
AQI 8
Palatine Township
AQI 12
Palos Township
AQI 8
Proviso Township
AQI 12
Rich Township
AQI 23
River Forest Township
AQI 12
Riverside Township
AQI 8
Schaumburg Township
AQI 12
Stickney Township
AQI 9
Thornton Township
AQI 20
Wheeling Township
AQI 12
Worth Township
AQI 27
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 8
Bedford Park
AQI 9
Chicago Ridge
AQI 8
Alsip
AQI 27
Calumet Park
AQI 8
Bridgeview
AQI 8
Blue Island
AQI 8