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  4. St. Clair County

St. Clair County

Illinois

2026-06-11 16:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
64.3
PM10
μg/m³
25.5
PM2.5
μg/m³
6.8
Weather
  • ℃
  • ℉
32℃
71%
5 kph
10 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
Places included
Belleville
AQI 29
Canteen Township
AQI 22
Caseyville Township
AQI 22
Centreville Township
AQI 29
East St. Louis Township
AQI 29
Fayetteville Township
AQI 11
Freeburg Township
AQI 11
Lebanon Township
AQI 32
Lenzburg Township
AQI 11
Marissa Township
AQI 11
Mascoutah Township
AQI 31
Millstadt Township
AQI 29
New Athens Township
AQI 11
O'Fallon Township
AQI 22
Shiloh Valley Township
AQI 13
Smithton Township
AQI 13
St. Clair Township
AQI 29
Stites Township
AQI 29
Sugar Loaf Township
AQI 15
Data Sources
http://www.airnow.gov/

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Cities Nearby

Smithton
AQI 13
New Athens
AQI 11
Fayetteville
AQI 11
Hecker
AQI 11
Belleville
AQI 29
Mascoutah
AQI 31
Lenzburg
AQI 11
Swansea
AQI 29
Millstadt
AQI 29
Saint Libory
AQI 11
Waterloo
AQI 12