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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-18 14:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
8.2
O3
μg/m³
40.7
PM10
μg/m³
12.8
NO2
μg/m³
18.7
SO2
μg/m³
5.1
Weather
  • ℃
  • ℉
13℃
59%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
  • NO2
  • SO2
Places included
Airport Township
AQI 52
Bonhomme Township
AQI 48
Chesterfield Township
AQI 41
Clayton Township
AQI 52
Concord Township
AQI 47
Creve Coeur Township
AQI 52
Ferguson Township
AQI 48
Gravois Township
AQI 52
Hadley Township
AQI 52
Jefferson Township
AQI 52
Lemay Township
AQI 48
Lewis and Clark Township
AQI 52
Maryland Heights Township
AQI 52
Meramec Township
AQI 35
Midland Township
AQI 52
Missouri River Township
AQI 52
Normandy Township
AQI 51
Northwest Township
AQI 52
Norwood Township
AQI 40
Oakville Township
AQI 35
Queeny Township
AQI 35
Spanish Lake Township
AQI 28
St. Ferdinand Township
AQI 26
Tesson Ferry Township
AQI 35
University Township
AQI 52
Wildhorse Township
AQI 35
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 52
Des Peres
AQI 52
Crystal Lake Park
AQI 52
Warson Woods
AQI 52
Rock Hill
AQI 52
Kirkwood
AQI 52
Frontenac
AQI 52
Glendale
AQI 52
Country Life Acres
AQI 52
Oakland
AQI 52
Westwood
AQI 52