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  4. Cook County

Cook County

Illinois

2026-08-09 03:00
CAQI (Europe)
Very Low
Pollutants|Pollens
O3
μg/m³
38.5
PM2.5
μg/m³
9.4
PM10
μg/m³
15.3
Weather
  • ℃
  • ℉
21℃
84%
4 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM2.5
  • PM10
Places included
Barrington Township
AQI 17
Berwyn Township
AQI 14
Bloom Township
AQI 22
Bremen Township
AQI 21
Calumet Township
AQI 21
Chicago
AQI 18
Cicero Township
AQI 14
Elk Grove Township
AQI 15
Evanston Township
AQI 25
Hanover Township
AQI 17
Lemont Township
AQI 21
Leyden Township
AQI 17
Lyons Township
AQI 12
Maine Township
AQI 20
New Trier Township
AQI 15
Niles Township
AQI 15
Northfield Township
AQI 24
Norwood Park Township
AQI 18
Oak Park Township
AQI 15
Orland Township
AQI 21
Palatine Township
AQI 15
Palos Township
AQI 15
Proviso Township
AQI 15
Rich Township
AQI 22
River Forest Township
AQI 15
Riverside Township
AQI 12
Schaumburg Township
AQI 18
Stickney Township
AQI 15
Thornton Township
AQI 21
Wheeling Township
AQI 15
Worth Township
AQI 20
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 21
Bedford Park
AQI 18
Chicago Ridge
AQI 21
Alsip
AQI 21
Calumet Park
AQI 21
Bridgeview
AQI 12
Blue Island
AQI 21