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  4. Cook County

Cook County

Illinois

2026-09-09 02:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
9.1
O3
μg/m³
80.6
PM10
μg/m³
21.1
Weather
  • ℃
  • ℉
26℃
66%
19 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 39
Berwyn Township
AQI 52
Bloom Township
AQI 55
Bremen Township
AQI 52
Calumet Township
AQI 53
Chicago
AQI 51
Cicero Township
AQI 52
Elk Grove Township
AQI 49
Evanston Township
AQI 46
Hanover Township
AQI 39
Lemont Township
AQI 51
Leyden Township
AQI 52
Lyons Township
AQI 51
Maine Township
AQI 42
New Trier Township
AQI 46
Niles Township
AQI 44
Northfield Township
AQI 45
Norwood Park Township
AQI 52
Oak Park Township
AQI 52
Orland Township
AQI 51
Palatine Township
AQI 41
Palos Township
AQI 51
Proviso Township
AQI 52
Rich Township
AQI 55
River Forest Township
AQI 52
Riverside Township
AQI 51
Schaumburg Township
AQI 52
Stickney Township
AQI 49
Thornton Township
AQI 54
Wheeling Township
AQI 42
Worth Township
AQI 50
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 51
Bedford Park
AQI 45
Chicago Ridge
AQI 51
Alsip
AQI 51
Calumet Park
AQI 51
Bridgeview
AQI 51
Blue Island
AQI 51