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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
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Ontario today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Ontario?
| Weather | Clear sky |
| Temperature | 42.8°F |
| Humidity | 48% |
| Wind | 5 mp/h |
| Pressure | 30.4 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Indio, California | 119 |
| 2 | Palm Desert, California | 111 |
| 3 | Coachella, California | 71 |
| 4 | Pahrump, Nevada | 70 |
| 5 | Casa Grande, Arizona | 68 |
| 6 | Georgetown, Texas | 66 |
| 7 | Corpus Christi, Texas | 65 |
| 8 | Lakewood, Colorado | 62 |
| 9 | San Antonio, Texas | 61 |
| 10 | Austin, Texas | 60 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
12*
live AQI index
Good
Overview
What is the current air quality in Ontario?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 12* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 2.9*µg/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 |
|---|---|---|---|---|
| Today | Good 12 AQI US | | 42.8° 32° |  11.2 mp/h |
| Friday, Apr 26 | Good 12 AQI US |  | 50° 32° | 11.2 mp/h |
| Saturday, Apr 27 | Good 17 AQI US |  100% | 59° 41° | 17.9 mp/h |
| Sunday, Apr 28 | Good 46 AQI US | 90% | 60.8° 48.2° | 8.9 mp/h |
| Monday, Apr 29 | Moderate 56 AQI US  | 90% | 59° 46.4° | 8.9 mp/h |
| Tuesday, Apr 30 | Moderate 72 AQI US | 100% | 62.6° 57.2° | 8.9 mp/h |
| Wednesday, May 1 | Good 22 AQI US | 80% | 66.2° 50° | 15.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Where is the cleanest air quality in Ontario?
No locations are available.
AQI US, Metric