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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-21 03:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
15.2
NO2
μg/m³
89.5
PM10
μg/m³
33.3
O3
μg/m³
51.4
SO2
μg/m³
3.4
Weather
  • ℃
  • ℉
13℃
73%
1 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • NO2
  • PM10
  • O3
  • SO2
Places included
Airport Township
AQI 64
Bonhomme Township
AQI 60
Chesterfield Township
AQI 57
Clayton Township
AQI 64
Concord Township
AQI 60
Creve Coeur Township
AQI 64
Ferguson Township
AQI 62
Gravois Township
AQI 64
Hadley Township
AQI 64
Jefferson Township
AQI 64
Lemay Township
AQI 60
Lewis and Clark Township
AQI 64
Maryland Heights Township
AQI 64
Meramec Township
AQI 54
Midland Township
AQI 64
Missouri River Township
AQI 64
Normandy Township
AQI 63
Northwest Township
AQI 64
Norwood Township
AQI 70
Oakville Township
AQI 54
Queeny Township
AQI 54
Spanish Lake Township
AQI 76
St. Ferdinand Township
AQI 75
Tesson Ferry Township
AQI 54
University Township
AQI 64
Wildhorse Township
AQI 54
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 64
Des Peres
AQI 64
Crystal Lake Park
AQI 64
Warson Woods
AQI 64
Rock Hill
AQI 64
Kirkwood
AQI 64
Frontenac
AQI 64
Glendale
AQI 64
Country Life Acres
AQI 64
Oakland
AQI 64
Westwood
AQI 64