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  4. Cook County

Cook County

Illinois

2026-05-18 19:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
75.2
PM2.5
μg/m³
5.8
PM10
μg/m³
11
Weather
  • ℃
  • ℉
26℃
73%
26 kph
3 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
Places included
Barrington Township
AQI 27
Berwyn Township
AQI 28
Bloom Township
AQI 23
Bremen Township
AQI 21
Calumet Township
AQI 21
Chicago
AQI 36
Cicero Township
AQI 31
Elk Grove Township
AQI 42
Evanston Township
AQI 38
Hanover Township
AQI 27
Lemont Township
AQI 25
Leyden Township
AQI 44
Lyons Township
AQI 45
Maine Township
AQI 39
New Trier Township
AQI 34
Niles Township
AQI 38
Northfield Township
AQI 35
Norwood Park Township
AQI 45
Oak Park Township
AQI 28
Orland Township
AQI 20
Palatine Township
AQI 35
Palos Township
AQI 37
Proviso Township
AQI 42
Rich Township
AQI 23
River Forest Township
AQI 28
Riverside Township
AQI 45
Schaumburg Township
AQI 45
Stickney Township
AQI 35
Thornton Township
AQI 23
Wheeling Township
AQI 39
Worth Township
AQI 38
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 24
Hometown
AQI 24
Oak Lawn
AQI 24
Burbank
AQI 24
Merrionette Park
AQI 20
Bedford Park
AQI 24
Chicago Ridge
AQI 20
Alsip
AQI 38
Calumet Park
AQI 20
Bridgeview
AQI 45
Blue Island
AQI 20