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  4. Cook County

Cook County

Illinois

2026-05-23 02:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
95.9
PM10
μg/m³
14
PM2.5
μg/m³
4.9
Weather
  • ℃
  • ℉
17℃
72%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
Places included
Barrington Township
AQI 14
Berwyn Township
AQI 8
Bloom Township
AQI 11
Bremen Township
AQI 7
Calumet Township
AQI 8
Chicago
AQI 32
Cicero Township
AQI 25
Elk Grove Township
AQI 14
Evanston Township
AQI 37
Hanover Township
AQI 14
Lemont Township
AQI 24
Leyden Township
AQI 26
Lyons Township
AQI 8
Maine Township
AQI 35
New Trier Township
AQI 14
Niles Township
AQI 14
Northfield Township
AQI 35
Norwood Park Township
AQI 14
Oak Park Township
AQI 14
Orland Township
AQI 7
Palatine Township
AQI 14
Palos Township
AQI 8
Proviso Township
AQI 14
Rich Township
AQI 11
River Forest Township
AQI 14
Riverside Township
AQI 8
Schaumburg Township
AQI 14
Stickney Township
AQI 8
Thornton Township
AQI 11
Wheeling Township
AQI 14
Worth Township
AQI 29
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 8
Hometown
AQI 8
Oak Lawn
AQI 8
Burbank
AQI 8
Merrionette Park
AQI 7
Bedford Park
AQI 8
Chicago Ridge
AQI 7
Alsip
AQI 29
Calumet Park
AQI 7
Bridgeview
AQI 8
Blue Island
AQI 7