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  4. Cook County

Cook County

Illinois

2026-05-16 12:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
7.4
O3
μg/m³
82.9
PM10
μg/m³
20
Weather
  • ℃
  • ℉
19℃
90%
9 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 19
Berwyn Township
AQI 47
Bloom Township
AQI 51
Bremen Township
AQI 43
Calumet Township
AQI 45
Chicago
AQI 54
Cicero Township
AQI 39
Elk Grove Township
AQI 40
Evanston Township
AQI 42
Hanover Township
AQI 19
Lemont Township
AQI 38
Leyden Township
AQI 48
Lyons Township
AQI 47
Maine Township
AQI 44
New Trier Township
AQI 27
Niles Township
AQI 35
Northfield Township
AQI 49
Norwood Park Township
AQI 48
Oak Park Township
AQI 47
Orland Township
AQI 42
Palatine Township
AQI 27
Palos Township
AQI 45
Proviso Township
AQI 47
Rich Township
AQI 51
River Forest Township
AQI 47
Riverside Township
AQI 47
Schaumburg Township
AQI 48
Stickney Township
AQI 46
Thornton Township
AQI 56
Wheeling Township
AQI 31
Worth Township
AQI 44
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 45
Hometown
AQI 45
Oak Lawn
AQI 45
Burbank
AQI 45
Merrionette Park
AQI 42
Bedford Park
AQI 45
Chicago Ridge
AQI 42
Alsip
AQI 44
Calumet Park
AQI 42
Bridgeview
AQI 47
Blue Island
AQI 42