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St. Clair County

Illinois

2026-08-14 23:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
37
O3
μg/m³
94.3
PM2.5
μg/m³
13.2
Weather
  • ℃
  • ℉
30℃
83%
12 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
Places included
Belleville
AQI 39
Canteen Township
AQI 34
Caseyville Township
AQI 34
Centreville Township
AQI 39
East St. Louis Township
AQI 39
Fayetteville Township
AQI 21
Freeburg Township
AQI 21
Lebanon Township
AQI 34
Lenzburg Township
AQI 21
Marissa Township
AQI 21
Mascoutah Township
AQI 33
Millstadt Township
AQI 39
New Athens Township
AQI 21
O'Fallon Township
AQI 34
Shiloh Valley Township
AQI 18
Smithton Township
AQI 18
St. Clair Township
AQI 39
Stites Township
AQI 39
Sugar Loaf Township
AQI 34
Data Sources
http://www.airnow.gov/

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Cities Nearby

Smithton
AQI 18
New Athens
AQI 21
Fayetteville
AQI 21
Hecker
AQI 21
Belleville
AQI 39
Mascoutah
AQI 36
Lenzburg
AQI 21
Swansea
AQI 39
Millstadt
AQI 39
Saint Libory
AQI 21
Waterloo
AQI 30