Air quality in Ontario

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

LAST UPDATE (local time)

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Air Quality contributors Sources

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Data sources

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Weather

What is the current weather in Ontario?

Weather icon
WeatherMist
Temperature59°C
Humidity67%
Wind3.4 mp/h
Pressure1011 mb

live aqi city ranking

Real-time USA city ranking

Tooltip icon
#cityUS AQI
1 Beltsville, Maryland

142

2 Charlotte Hall, Maryland

130

3 Nogales, Arizona

115

4 Terrell, Texas

115

5 Yucaipa, California

98

6 Highland, California

94

7 Redlands, California

93

8 San Antonio, Texas

92

9 Rancho Cucamonga, California

89

10 Rye, New Hampshire

88

(local time)

SEE WORLD AQI RANKING

live Ontario aqi ranking

Real-time Ontario air quality ranking

Tooltip icon
#stationUS AQI
1 Ontario Ranch

85

(local time)

SEE WORLD AQI RANKING

US AQI

85

live AQI index
Moderate

Human face indicating AQI level

Overview

What is the current air quality in Ontario?

Air pollution levelAir quality indexMain pollutant
Moderate 85 US AQItrendPM2.5
PollutantsConcentration
PM2.5
28.2 µg/m³trend

Health Recommendations

How to protect from air pollution in Ontario?

An open window iconClose your windows to avoid dirty outdoor air
A man cycling iconSensitive groups should reduce outdoor exercise

Forecast

Ontario air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Thursday, Apr 8

Moderate 57 US AQI

Human face indicating AQI level
Friday, Apr 9

Moderate 65 US AQI

Human face indicating AQI level
Saturday, Apr 10

Moderate 73 US AQI

Human face indicating AQI level
Sunday, Apr 11

Moderate 68 US AQI

Human face indicating AQI level
Weather icon75.2°57.2°
Wind rotating 239 degree

4.5 mp/h

Today

Good 39 US AQI

Human face indicating AQI level
Weather icon66.2°55.4°
Wind rotating 249 degree

4.5 mp/h

Tuesday, Apr 13

Good 27 US AQI

Human face indicating AQI level
Weather icon66.2°50°
Wind rotating 271 degree

2.2 mp/h

Wednesday, Apr 14

Good 40 US AQI

Human face indicating AQI level
Weather icon69.8°51.8°
Wind rotating 244 degree

4.5 mp/h

Thursday, Apr 15

Good 45 US AQI

Human face indicating AQI level
Weather icon75.2°55.4°
Wind rotating 245 degree

2.2 mp/h

Friday, Apr 16

Good 36 US AQI

Human face indicating AQI level
Weather icon84.2°59°
Wind rotating 22 degree

2.2 mp/h

Saturday, Apr 17

Good 40 US AQI

Human face indicating AQI level
Weather icon82.4°64.4°
Wind rotating 30 degree

15.7 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 sources

Contributors 1

Data sources 1

Data validated and calibrated by IQAir

Where is the cleanest air quality in Ontario?

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