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

St. Charles County

Missouri

2026-06-21 19:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
81.4
PM10
μg/m³
9
NO2
μg/m³
12.1
PM2.5
μg/m³
0.8
Weather
  • ℃
  • ℉
25℃
91%
5 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
Places included
Boone Township
AQI 1
Cottleville Township
AQI 1
Dardenne Township
AQI 1
Harvester Township
AQI 1
Lake St. Louis Township
AQI 47
Lindenwood Township
AQI 9
Rivers Township
AQI 37
Spencer Creek Township
AQI 1
St. Peters Township
AQI 1
Wentzville Township
AQI 40
Zumbehl Township
AQI 1
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

New Melle
AQI 49
Lake Saint Louis
AQI 47
Wentzville
AQI 40
Weldon Spring
AQI 52
Josephville
AQI 36
Weldon Spring Heights
AQI 1
Flint Hill
AQI 40
O'Fallon
AQI 41
Foristell
AQI 39
Cottleville
AQI 1
Saint Paul
AQI 36