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  4. Cook County

Cook County

Illinois

2026-05-23 21:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.9
O3
μg/m³
83.8
PM10
μg/m³
12
Weather
  • ℃
  • ℉
17℃
82%
22 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 31
Berwyn Township
AQI 38
Bloom Township
AQI 63
Bremen Township
AQI 36
Calumet Township
AQI 48
Chicago
AQI 45
Cicero Township
AQI 38
Elk Grove Township
AQI 27
Evanston Township
AQI 42
Hanover Township
AQI 31
Lemont Township
AQI 45
Leyden Township
AQI 30
Lyons Township
AQI 30
Maine Township
AQI 35
New Trier Township
AQI 42
Niles Township
AQI 29
Northfield Township
AQI 38
Norwood Park Township
AQI 29
Oak Park Township
AQI 38
Orland Township
AQI 29
Palatine Township
AQI 28
Palos Township
AQI 30
Proviso Township
AQI 31
Rich Township
AQI 63
River Forest Township
AQI 38
Riverside Township
AQI 30
Schaumburg Township
AQI 29
Stickney Township
AQI 32
Thornton Township
AQI 59
Wheeling Township
AQI 26
Worth Township
AQI 37
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 34
Hometown
AQI 34
Oak Lawn
AQI 34
Burbank
AQI 34
Merrionette Park
AQI 29
Bedford Park
AQI 34
Chicago Ridge
AQI 29
Alsip
AQI 37
Calumet Park
AQI 29
Bridgeview
AQI 30
Blue Island
AQI 29