Air quality in Ontario

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

Last update at (local time)

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Air Quality Data contributor(s)

Station(s) operated by

Contributors

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Weather

What is the current weather in Ontario?

Weather icon
WeatherScattered clouds
Temperature66.2°C
Humidity81%
Wind2.1 mp/h
Pressure1015 mb

live aqi city ranking

Real-time USA city ranking

#cityUS AQI
1 Weaverville, California

188

2 Hayfork, California

186

3 Yreka, California

162

4 Montague, California

159

5 Prosser, Washington

158

6 Brawley, California

146

7 Dayton, Montana

143

8 Westmorland, California

130

9 Klamath, Oregon

124

10 Wisdom, Montana

123

(local time)

SEE WORLD AQI RANKING

live Ontario aqi ranking

Real-time Ontario air quality ranking

#stationUS AQI
1 Ontario May Roberts Elementary School

21

2 Owyhee Dead Ox Ontario

15

(local time)

SEE WORLD AQI RANKING

US AQI

15

live AQI index
Good

Human face indicating AQI level

Overview

What is the current air quality in Ontario?

Air pollution levelAir quality indexMain pollutant
Good 15 US AQItrendPM2.5
PollutantsConcentration
PM2.5
3.7µg/m³trend

PM2.5 concentration in Ontario air currently meets the WHO annual air quality guideline value

Health Recommendations

How to protect from air pollution in Ontario?

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Forecast

Ontario air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Sunday, Aug 7

Good 31 US AQI

Human face indicating AQI level
Weather icon102.2°66.2°
Wind rotating 50 degree

4.5 mp/h

Monday, Aug 8

Good 25 US AQI

Human face indicating AQI level
Weather icon98.6°77°
Wind rotating 234 degree

29.1 mp/h

Tuesday, Aug 9

Good 19 US AQI

Human face indicating AQI level
Weather icon89.6°71.6°
Wind rotating 140 degree

13.4 mp/h

Wednesday, Aug 10

Good 12 US AQI

Human face indicating AQI level
Weather icon100.4°66.2°
Wind rotating 159 degree

15.7 mp/h

Today

Good 15 US AQI

Human face indicating AQI level
Weather icon98.6°64.4°
Wind rotating 288 degree

6.7 mp/h

Friday, Aug 12

Good 25 US AQI

Human face indicating AQI level
Weather icon98.6°68°
Wind rotating 262 degree

8.9 mp/h

Saturday, Aug 13

Good 25 US AQI

Human face indicating AQI level
Weather icon98.6°66.2°
Wind rotating 315 degree

4.5 mp/h

Sunday, Aug 14

Good 28 US AQI

Human face indicating AQI level
Weather icon102.2°68°
Wind rotating 317 degree

8.9 mp/h

Monday, Aug 15

Good 29 US AQI

Human face indicating AQI level
Weather icon102.2°68°
Wind rotating 320 degree

11.2 mp/h

Tuesday, Aug 16

Good 34 US AQI

Human face indicating AQI level
Weather icon104°69.8°
Wind rotating 81 degree

13.4 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

Ontario air quality data attribution

Contributors 2

Data validated and calibrated by IQAir

Where is the cleanest air quality in Ontario?

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