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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-10 05:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
88.9
PM2.5
μg/m³
6.6
PM10
μg/m³
33.1
NO2
μg/m³
37.4
SO2
μg/m³
2.3
Weather
  • ℃
  • ℉
20℃
49%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • SO2
Places included
Airport Township
AQI 35
Bonhomme Township
AQI 36
Chesterfield Township
AQI 38
Clayton Township
AQI 35
Concord Township
AQI 37
Creve Coeur Township
AQI 35
Ferguson Township
AQI 35
Gravois Township
AQI 35
Hadley Township
AQI 35
Jefferson Township
AQI 35
Lemay Township
AQI 36
Lewis and Clark Township
AQI 35
Maryland Heights Township
AQI 38
Meramec Township
AQI 39
Midland Township
AQI 35
Missouri River Township
AQI 35
Normandy Township
AQI 35
Northwest Township
AQI 35
Norwood Township
AQI 40
Oakville Township
AQI 39
Queeny Township
AQI 39
Spanish Lake Township
AQI 45
St. Ferdinand Township
AQI 45
Tesson Ferry Township
AQI 39
University Township
AQI 35
Wildhorse Township
AQI 39
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 35
Des Peres
AQI 35
Crystal Lake Park
AQI 35
Warson Woods
AQI 35
Rock Hill
AQI 35
Kirkwood
AQI 35
Frontenac
AQI 35
Glendale
AQI 35
Country Life Acres
AQI 35
Oakland
AQI 35
Westwood
AQI 35