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

St. Louis County

Missouri

2026-08-31 20:00
AQI (UK)
Moderate
Pollutants|Pollens
O3
μg/m³
115.7
PM10
μg/m³
27.3
PM2.5
μg/m³
7.1
NO2
μg/m³
30.8
SO2
μg/m³
11.4
Weather
  • ℃
  • ℉
37℃
39%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (UK)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • SO2
Places included
Airport Township
AQI 2
Bonhomme Township
AQI 2
Chesterfield Township
AQI 2
Clayton Township
AQI 2
Concord Township
AQI 2
Creve Coeur Township
AQI 2
Ferguson Township
AQI 2
Gravois Township
AQI 2
Hadley Township
AQI 2
Jefferson Township
AQI 2
Lemay Township
AQI 2
Lewis and Clark Township
AQI 2
Maryland Heights Township
AQI 5
Meramec Township
AQI 4
Midland Township
AQI 2
Missouri River Township
AQI 2
Normandy Township
AQI 2
Northwest Township
AQI 2
Norwood Township
AQI 3
Oakville Township
AQI 2
Queeny Township
AQI 2
Spanish Lake Township
AQI 3
St. Ferdinand Township
AQI 3
Tesson Ferry Township
AQI 2
University Township
AQI 2
Wildhorse Township
AQI 2
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Huntleigh
AQI 2
Des Peres
AQI 2
Crystal Lake Park
AQI 2
Warson Woods
AQI 2
Rock Hill
AQI 2
Kirkwood
AQI 2
Frontenac
AQI 2
Glendale
AQI 2
Country Life Acres
AQI 2
Oakland
AQI 2
Westwood
AQI 2