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  4. St. Charles County

St. Charles County

Missouri

2026-09-30 12:00
AQI (China)
Good
Pollutants|Pollens
PM10
μg/m³
58.5
O3
μg/m³
60
PM2.5
μg/m³
10.2
NO2
μg/m³
25.7
Weather
  • ℃
  • ℉
22℃
58%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
Places included
Boone Township
AQI 14
Cottleville Township
AQI 14
Dardenne Township
AQI 14
Harvester Township
AQI 14
Lake St. Louis Township
AQI 30
Lindenwood Township
AQI 46
Rivers Township
AQI 65
Spencer Creek Township
AQI 14
St. Peters Township
AQI 14
Wentzville Township
AQI 25
Zumbehl Township
AQI 14
Data Sources
http://www.airnow.gov/

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Cities Nearby

New Melle
AQI 32
Lake Saint Louis
AQI 30
Wentzville
AQI 25
Weldon Spring
AQI 34
Josephville
AQI 26
Weldon Spring Heights
AQI 14
Flint Hill
AQI 25
O'Fallon
AQI 35
Foristell
AQI 24
Cottleville
AQI 14
Saint Paul
AQI 26