Toggle navigation
Places
AQI (UK)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
North America
United States
Missouri
St. Charles County
Lake Saint Louis
AQI (UK)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Lake Saint Louis
Lake St. Louis Township, St. Charles County
2025-03-11 16:00
AQI (UK)
Low
Pollutants
PM10
μg/m³
19.9
PM2.5
μg/m³
13.4
Weather
℃
℃
℉
20℃
37%
19 kph
3 of 11
Historical Data
Hourly
Hourly
Daily
AQI (UK)
AQI (UK)
PM10
PM2.5
Get the App
Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.
iPhone, iPad
Android
Scan QR Code to Download App
iOS
Google Play
Download APK
Cities Nearby
Lake Saint Louis
AQI 2
Wentzville
AQI 2
Josephville
AQI 2
O'Fallon
AQI 2
Saint Paul
AQI 2
Flint Hill
AQI 2
New Melle
AQI 2
Weldon Spring
AQI 2
Weldon Spring Heights
AQI 1
Cottleville
AQI 1
St. Peters
AQI 1
Air Matters © 2025