1. North America
  2. United States
  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-09 23:00
AQI (US)
Moderate
Pollutants|Pollens
O3
μg/m³
126.4
PM10
μg/m³
51
NO2
μg/m³
49.1
PM2.5
μg/m³
3.9
SO2
μg/m³
2.6
Weather
  • ℃
  • ℉
29℃
30%
17 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • SO2
Places included
Airport Township
AQI 63
Bonhomme Township
AQI 19
Chesterfield Township
AQI 18
Clayton Township
AQI 57
Concord Township
AQI 19
Creve Coeur Township
AQI 63
Ferguson Township
AQI 63
Gravois Township
AQI 35
Hadley Township
AQI 63
Jefferson Township
AQI 55
Lemay Township
AQI 19
Lewis and Clark Township
AQI 63
Maryland Heights Township
AQI 72
Meramec Township
AQI 60
Midland Township
AQI 63
Missouri River Township
AQI 35
Normandy Township
AQI 63
Northwest Township
AQI 63
Norwood Township
AQI 58
Oakville Township
AQI 17
Queeny Township
AQI 17
Spanish Lake Township
AQI 53
St. Ferdinand Township
AQI 53
Tesson Ferry Township
AQI 17
University Township
AQI 63
Wildhorse Township
AQI 17
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 20
Des Peres
AQI 20
Crystal Lake Park
AQI 20
Warson Woods
AQI 63
Rock Hill
AQI 63
Kirkwood
AQI 20
Frontenac
AQI 63
Glendale
AQI 20
Country Life Acres
AQI 20
Oakland
AQI 20
Westwood
AQI 63