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  2. United States
  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-19 00:00
AQI (US)
Good
Pollutants|Pollens
NO2
μg/m³
52.8
O3
μg/m³
55.7
PM2.5
μg/m³
2.5
PM10
μg/m³
11.9
SO2
μg/m³
2
Weather
  • ℃
  • ℉
12℃
66%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • NO2
  • O3
  • PM2.5
  • PM10
  • SO2
Places included
Airport Township
AQI 25
Bonhomme Township
AQI 13
Chesterfield Township
AQI 14
Clayton Township
AQI 12
Concord Township
AQI 13
Creve Coeur Township
AQI 13
Ferguson Township
AQI 13
Gravois Township
AQI 12
Hadley Township
AQI 13
Jefferson Township
AQI 12
Lemay Township
AQI 13
Lewis and Clark Township
AQI 13
Maryland Heights Township
AQI 24
Meramec Township
AQI 26
Midland Township
AQI 13
Missouri River Township
AQI 12
Normandy Township
AQI 13
Northwest Township
AQI 13
Norwood Township
AQI 19
Oakville Township
AQI 14
Queeny Township
AQI 14
Spanish Lake Township
AQI 31
St. Ferdinand Township
AQI 26
Tesson Ferry Township
AQI 14
University Township
AQI 13
Wildhorse Township
AQI 14
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 12
Des Peres
AQI 12
Crystal Lake Park
AQI 12
Warson Woods
AQI 13
Rock Hill
AQI 13
Kirkwood
AQI 12
Frontenac
AQI 13
Glendale
AQI 12
Country Life Acres
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Oakland
AQI 12
Westwood
AQI 13