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St. Clair County

Illinois

2026-04-16 17:00
AQI (India)
Moderately polluted
Pollutants|Pollens
O3
μg/m³
109.3
PM10
μg/m³
21
PM2.5
μg/m³
5.6
Weather
  • ℃
  • ℉
24℃
68%
17 kph
8 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • PM2.5
Places included
Belleville
AQI 22
Canteen Township
AQI 20
Caseyville Township
AQI 20
Centreville Township
AQI 22
East St. Louis Township
AQI 114
Fayetteville Township
AQI 10
Freeburg Township
AQI 10
Lebanon Township
AQI 121
Lenzburg Township
AQI 10
Marissa Township
AQI 10
Mascoutah Township
AQI 120
Millstadt Township
AQI 22
New Athens Township
AQI 10
O'Fallon Township
AQI 20
Shiloh Valley Township
AQI 11
Smithton Township
AQI 11
St. Clair Township
AQI 22
Stites Township
AQI 22
Sugar Loaf Township
AQI 18
Data Sources
http://www.airnow.gov/

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Cities Nearby

Smithton
AQI 11
New Athens
AQI 10
Fayetteville
AQI 10
Hecker
AQI 10
Belleville
AQI 22
Mascoutah
AQI 118
Lenzburg
AQI 10
Swansea
AQI 22
Millstadt
AQI 22
Saint Libory
AQI 10
Waterloo
AQI 16