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Air quality in St. Catharines
Air quality index (AQI) and PM2.5 air pollution in St. Catharines
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St. Catharines Air Quality Map
Real-time St. Catharines air pollution map
AIR QUALITY DATA CONTRIBUTORS
Government of Ontario, Ministry of the Environment
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Pollen
What is the pollen count in St. Catharines today?
 | Index | None | |
 | Tree pollen | None | |
 | Grass pollen | None | |
 | Weed pollen | None |
Weather
What is the current weather in St. Catharines?
| Weather | Broken clouds |
| Temperature | 46.4°F |
| Humidity | 62% |
| Wind | 11.2 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time Canada city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Valemount, British Columbia | 66 |
| 2 | Golden, British Columbia | 59 |
| 3 | Chetwynd, British Columbia | 43 |
| 4 | Parksville, British Columbia | 43 |
| 5 | Patricia Mcinnes, Alberta | 41 |
| 6 | West End, British Columbia | 40 |
| 7 | Cold Lake, Alberta | 38 |
| 8 | Courtenay, British Columbia | 38 |
| 9 | Lac La Biche, Alberta | 38 |
| 10 | Richmond, British Columbia | 38 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live St. Catharines aqi ranking
Real-time St. Catharines air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | St. Catharines Station | 35 |
(local time)
SEE WORLD AQI RANKING
US AQI
36
live AQI index
Good
Overview
What is the current air quality in St. Catharines?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 36 US AQI | O3 |
| Pollutants | Concentration | |
|---|---|---|
| O3 | 88µg/m³ | |
Health Recommendations
What is the current air quality in St. Catharines?
 | Enjoy outdoor activities |
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Forecast
St. Catharines air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Wednesday, Apr 17 | Good 30 AQI US |  | 51.8° 46.4° |  11.2 mp/h |
| Thursday, Apr 18 | Good 25 AQI US | | 51.8° 44.6° | 15.7 mp/h |
| Friday, Apr 19 | Good 35 AQI US | | 46.4° 39.2° | 17.9 mp/h |
| Today | Good 36 AQI US | | 46.4° 39.2° | 17.9 mp/h |
| Sunday, Apr 21 | Good 6 AQI US |  | 48.2° 35.6° | 17.9 mp/h |
| Monday, Apr 22 | Good 14 AQI US |  | 48.2° 33.8° | 11.2 mp/h |
| Tuesday, Apr 23 | Good 26 AQI US | 100% | 50° 46.4° | 22.4 mp/h |
| Wednesday, Apr 24 | Good 22 AQI US |  100% | 46.4° 32° | 24.6 mp/h |
| Thursday, Apr 25 | Good 5 AQI US | 40% | 41° 32° | 29.1 mp/h |
| Friday, Apr 26 | Good 6 AQI US | | 48.2° 35.6° | 8.9 mp/h |
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News
The latest air quality news and resources.
St. Catharines air quality data attribution
1Contributor
Government Contributor
2 Data sources
Where is the cleanest air quality in St. Catharines?
AQI US, Metric