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Air quality in Ontario
Air quality index (AQI) and PM2.5 air pollution in Ontario
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Ontario Air Quality Map
Real-time Ontario air pollution map
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Pollen
What is the pollen count in Ontario today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | High | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Ontario?
| Weather | Clear sky |
| Temperature | 62.6°F |
| Humidity | 54% |
| Wind | 2 mp/h |
| Pressure | 30.2 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Corpus Christi, Texas | 92 |
| 2 | Claremont, California | 87 |
| 3 | Glendora, California | 87 |
| 4 | Mecca, California | 87 |
| 5 | La Verne, California | 83 |
| 6 | Pasadena, California | 83 |
| 7 | Redlands, California | 83 |
| 8 | San Bernardino, California | 83 |
| 9 | San Fernando, California | 81 |
| 10 | Glendale, California | 80 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Ontario aqi ranking
Real-time Ontario air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Ontario Drive | 21 |
(local time)
SEE WORLD AQI RANKING
US AQI
20
live AQI index
Good
Overview
What is the current air quality in Ontario?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 20 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.6µg/m³ | |
✓
PM2.5 concentration in Ontario air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Ontario?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Ontario air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Wednesday, May 29 | Good 13 AQI US | | 60.8° 48.2° |  11.2 mp/h |
| Thursday, May 30 | Good 14 AQI US |  | 66.2° 46.4° | 11.2 mp/h |
| Friday, May 31 | Good 20 AQI US | | 64.4° 51.8° | 8.9 mp/h |
| Today | Good 20 AQI US | | 64.4° 51.8° | 8.9 mp/h |
| Sunday, Jun 2 | Good 48 AQI US |  70% | 68° 57.2° | 8.9 mp/h |
| Monday, Jun 3 | Moderate 61 AQI US  |  | 64.4° 57.2° | 6.7 mp/h |
| Tuesday, Jun 4 | Moderate 64 AQI US | | 73.4° 59° | 6.7 mp/h |
| Wednesday, Jun 5 | Good 49 AQI US | 60% | 71.6° 60.8° | 20.1 mp/h |
| Thursday, Jun 6 | Good 50 AQI US | 100% | 68° 57.2° | 20.1 mp/h |
| Friday, Jun 7 | Good 19 AQI US | 70% | 64.4° 55.4° | 11.2 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Ontario air quality data attribution
1Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Ontario?
AQI US, Metric