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  4. St. Clair County

St. Clair County

Illinois

2026-07-27 00:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
87.9
PM10
μg/m³
29.3
PM2.5
μg/m³
12.8
Weather
  • ℃
  • ℉
31℃
81%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
Places included
Belleville
AQI 29
Canteen Township
AQI 30
Caseyville Township
AQI 30
Centreville Township
AQI 29
East St. Louis Township
AQI 37
Fayetteville Township
AQI 18
Freeburg Township
AQI 18
Lebanon Township
AQI 31
Lenzburg Township
AQI 18
Marissa Township
AQI 18
Mascoutah Township
AQI 30
Millstadt Township
AQI 29
New Athens Township
AQI 18
O'Fallon Township
AQI 30
Shiloh Valley Township
AQI 25
Smithton Township
AQI 25
St. Clair Township
AQI 29
Stites Township
AQI 29
Sugar Loaf Township
AQI 29
Data Sources
http://www.airnow.gov/

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Cities Nearby

Smithton
AQI 25
New Athens
AQI 18
Fayetteville
AQI 18
Hecker
AQI 18
Belleville
AQI 29
Mascoutah
AQI 31
Lenzburg
AQI 18
Swansea
AQI 29
Millstadt
AQI 29
Saint Libory
AQI 18
Waterloo
AQI 27