Air quality in Ontario

Air quality index (AQI) and PM2.5 air pollution in Ontario

LAST UPDATE (local time)

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Data source
* AQI modeled using satellite data

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Weather

What is the current weather in Ontario?

WeatherClear sky
Temperature69.8°C
Humidity64%
Wind2.1 mp/h
Pressure1016 mb

live aqi city ranking

Real-time USA city ranking

#cityUS AQI
1Clifton

151

2Palisade

148

3Union

143

4Steamboat Springs

137

5Hidden Valley

134

6Walden

132

7Desert Hot Springs

129

8Laramie

124

9Fruitvale

118

10Baldwin City

117

(local time)

SEE WORLD AQI RANKING

live Ontario aqi ranking

Real-time Ontario air quality ranking

City AQI based on satellite data. No ground level station currently available in Ontario.

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US AQI

55 *

live AQI index
Moderate

Overview

What is the current air quality in Ontario?

Air pollution levelAir quality indexMain pollutant
Moderate55 US AQIPM2.5
PollutantsConcentration
PM2.5
14.1 µg/m³

Health Recommendations

How to protect from air pollution in Ontario?

Close your windows to avoid dirty outdoor air
Sensitive groups should reduce outdoor exercise

Forecast

Ontario air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Saturday, Dec 28

Good8 US AQI

Sunday, Dec 29

Good8 US AQI

Monday, Dec 30

Good1 US AQI

Today

Moderate61 US AQI

face icon
weather icon91.4°71.6°

2.2 mp/h

Sunday, Aug 9

Moderate69 US AQI

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weather icon93.2°69.8°

2.2 mp/h

Monday, Aug 10

Moderate63 US AQI

face icon
weather icon93.2°69.8°

2.2 mp/h

Tuesday, Aug 11

Moderate58 US AQI

face icon
weather icon93.2°71.6°

2.2 mp/h

Wednesday, Aug 12

Moderate66 US AQI

face icon
weather icon95°71.6°

2.2 mp/h

Thursday, Aug 13

Moderate67 US AQI

face icon
weather icon98.6°77°

2.2 mp/h

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Historical

Historic air quality graph for Ontario

How to best protect from air pollution?

Reduce your air pollution exposure in Ontario

Community Contributors

Where is the cleanest air quality in Ontario?

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