1. North America
  2. United States
  3. California
  4. San Bernardino County
  5. Ontario

Ontario

San Bernardino County, California

2026-06-19 04:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
7
PM10
μg/m³
23
NO2
μg/m³
33.8
CO
μg/m³
250
Weather
  • ℃
  • ℉
18℃
79%
23 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • NO2
  • CO
Places included
60 Near Road
AQI 17
Ontario Near Road
AQI 15
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

Ontario
AQI 39
Upland
AQI 39
Chino
AQI 39
Rancho Cucamonga
AQI 39
Claremont
AQI 43
Pomona
AQI 43
San Antonio Heights
AQI 39
Chino Hills
AQI 43
La Verne
AQI 43
Eastvale
AQI 39
San Dimas
AQI 43