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  4. Cook County

Cook County

Illinois

2026-05-23 22:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
7
O3
μg/m³
80.6
PM10
μg/m³
14
Weather
  • ℃
  • ℉
17℃
82%
22 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 23
Berwyn Township
AQI 35
Bloom Township
AQI 69
Bremen Township
AQI 38
Calumet Township
AQI 52
Chicago
AQI 40
Cicero Township
AQI 35
Elk Grove Township
AQI 26
Evanston Township
AQI 48
Hanover Township
AQI 23
Lemont Township
AQI 55
Leyden Township
AQI 32
Lyons Township
AQI 28
Maine Township
AQI 36
New Trier Township
AQI 48
Niles Township
AQI 28
Northfield Township
AQI 39
Norwood Park Township
AQI 29
Oak Park Township
AQI 35
Orland Township
AQI 29
Palatine Township
AQI 23
Palos Township
AQI 28
Proviso Township
AQI 30
Rich Township
AQI 69
River Forest Township
AQI 35
Riverside Township
AQI 28
Schaumburg Township
AQI 29
Stickney Township
AQI 32
Thornton Township
AQI 62
Wheeling Township
AQI 23
Worth Township
AQI 35
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 36
Hometown
AQI 36
Oak Lawn
AQI 36
Burbank
AQI 36
Merrionette Park
AQI 29
Bedford Park
AQI 36
Chicago Ridge
AQI 29
Alsip
AQI 35
Calumet Park
AQI 29
Bridgeview
AQI 28
Blue Island
AQI 29