1. North America
  2. United States
  3. Missouri
  4. St. Charles County
  6. O'Fallon

O'Fallon

Boone Township, St. Charles County

2026-05-06 06:00
AQI (India)
Satisfactory
Pollutants|Pollens
O3
μg/m³
58.4
NO2
μg/m³
8.8
PM10
μg/m³
10.3
PM2.5
μg/m³
5.4
SO2
μg/m³
0.1
Weather
  • ℃
  • ℉
8℃
93%
14 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • NO2
  • PM10
  • PM2.5
  • SO2

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

O'Fallon
AQI 59
St. Peters
AQI 12
Saint Paul
AQI 43
Cottleville
AQI 12
Lake Saint Louis
AQI 61
Josephville
AQI 43
Weldon Spring
AQI 57
Weldon Spring Heights
AQI 12
Wentzville
AQI 63
Chain of Rocks
AQI 59
Flint Hill
AQI 63