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  4. Cook County

Cook County

Illinois

2026-05-19 20:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
110.7
PM2.5
μg/m³
6.6
PM10
μg/m³
13
Weather
  • ℃
  • ℉
25℃
70%
32 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
Places included
Barrington Township
AQI 22
Berwyn Township
AQI 38
Bloom Township
AQI 41
Bremen Township
AQI 40
Calumet Township
AQI 40
Chicago
AQI 53
Cicero Township
AQI 50
Elk Grove Township
AQI 39
Evanston Township
AQI 54
Hanover Township
AQI 22
Lemont Township
AQI 32
Leyden Township
AQI 43
Lyons Township
AQI 38
Maine Township
AQI 48
New Trier Township
AQI 27
Niles Township
AQI 36
Northfield Township
AQI 51
Norwood Park Township
AQI 44
Oak Park Township
AQI 38
Orland Township
AQI 39
Palatine Township
AQI 30
Palos Township
AQI 39
Proviso Township
AQI 41
Rich Township
AQI 41
River Forest Township
AQI 38
Riverside Township
AQI 38
Schaumburg Township
AQI 44
Stickney Township
AQI 38
Thornton Township
AQI 47
Wheeling Township
AQI 34
Worth Township
AQI 48
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 37
Hometown
AQI 37
Oak Lawn
AQI 37
Burbank
AQI 37
Merrionette Park
AQI 39
Bedford Park
AQI 37
Chicago Ridge
AQI 39
Alsip
AQI 48
Calumet Park
AQI 39
Bridgeview
AQI 38
Blue Island
AQI 39