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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-12 16:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
107.1
PM2.5
μg/m³
6.1
PM10
μg/m³
27.8
NO2
μg/m³
25.3
SO2
μg/m³
10.6
Weather
  • ℃
  • ℉
31℃
47%
22 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • SO2
Places included
Airport Township
AQI 31
Bonhomme Township
AQI 31
Chesterfield Township
AQI 32
Clayton Township
AQI 29
Concord Township
AQI 31
Creve Coeur Township
AQI 31
Ferguson Township
AQI 34
Gravois Township
AQI 29
Hadley Township
AQI 31
Jefferson Township
AQI 29
Lemay Township
AQI 31
Lewis and Clark Township
AQI 31
Maryland Heights Township
AQI 47
Meramec Township
AQI 47
Midland Township
AQI 31
Missouri River Township
AQI 29
Normandy Township
AQI 32
Northwest Township
AQI 31
Norwood Township
AQI 49
Oakville Township
AQI 34
Queeny Township
AQI 34
Spanish Lake Township
AQI 55
St. Ferdinand Township
AQI 57
Tesson Ferry Township
AQI 34
University Township
AQI 31
Wildhorse Township
AQI 34
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 29
Des Peres
AQI 29
Crystal Lake Park
AQI 29
Warson Woods
AQI 31
Rock Hill
AQI 31
Kirkwood
AQI 29
Frontenac
AQI 31
Glendale
AQI 29
Country Life Acres
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Oakland
AQI 29
Westwood
AQI 31