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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-15 11:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
9.5
PM10
μg/m³
35.3
NO2
μg/m³
34.3
SO2
μg/m³
1.7
O3
μg/m³
1.1
Weather
  • ℃
  • ℉
20℃
92%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • NO2
  • SO2
  • O3
Places included
Airport Township
AQI 53
Bonhomme Township
AQI 51
Chesterfield Township
AQI 44
Clayton Township
AQI 53
Concord Township
AQI 50
Creve Coeur Township
AQI 53
Ferguson Township
AQI 53
Gravois Township
AQI 53
Hadley Township
AQI 53
Jefferson Township
AQI 53
Lemay Township
AQI 51
Lewis and Clark Township
AQI 53
Maryland Heights Township
AQI 53
Meramec Township
AQI 37
Midland Township
AQI 53
Missouri River Township
AQI 53
Normandy Township
AQI 53
Northwest Township
AQI 53
Norwood Township
AQI 54
Oakville Township
AQI 37
Queeny Township
AQI 37
Spanish Lake Township
AQI 56
St. Ferdinand Township
AQI 55
Tesson Ferry Township
AQI 37
University Township
AQI 53
Wildhorse Township
AQI 37
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 53
Des Peres
AQI 53
Crystal Lake Park
AQI 53
Warson Woods
AQI 53
Rock Hill
AQI 53
Kirkwood
AQI 53
Frontenac
AQI 53
Glendale
AQI 53
Country Life Acres
AQI 53
Oakland
AQI 53
Westwood
AQI 53