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  4. Cook County

Cook County

Illinois

2026-05-20 13:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
42.8
PM2.5
μg/m³
2.4
PM10
μg/m³
3
Weather
  • ℃
  • ℉
14℃
71%
26 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
Places included
Barrington Township
AQI 12
Berwyn Township
AQI 15
Bloom Township
AQI 13
Bremen Township
AQI 16
Calumet Township
AQI 15
Chicago
AQI 21
Cicero Township
AQI 18
Elk Grove Township
AQI 13
Evanston Township
AQI 20
Hanover Township
AQI 12
Lemont Township
AQI 14
Leyden Township
AQI 15
Lyons Township
AQI 14
Maine Township
AQI 21
New Trier Township
AQI 8
Niles Township
AQI 12
Northfield Township
AQI 21
Norwood Park Township
AQI 15
Oak Park Township
AQI 15
Orland Township
AQI 16
Palatine Township
AQI 11
Palos Township
AQI 15
Proviso Township
AQI 15
Rich Township
AQI 13
River Forest Township
AQI 15
Riverside Township
AQI 14
Schaumburg Township
AQI 15
Stickney Township
AQI 16
Thornton Township
AQI 15
Wheeling Township
AQI 11
Worth Township
AQI 17
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 18
Hometown
AQI 18
Oak Lawn
AQI 18
Burbank
AQI 18
Merrionette Park
AQI 16
Bedford Park
AQI 18
Chicago Ridge
AQI 16
Alsip
AQI 17
Calumet Park
AQI 16
Bridgeview
AQI 14
Blue Island
AQI 16