Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Pollen count and allergy info for St. Catharines
St. Catharines pollen and allergy report
Today's Pollen Count in St. Catharines
Low
Air quality
Air quality of St. Catharines today
| AQI US AQI | Good | |
| O3 µg/m³ | Good |
3D animated air pollution map
Allergy forecast
St. Catharines pollen count forecast
| Day | Index | Tree | Grass | Weed | Wind | Weather | Temperature |
|---|---|---|---|---|---|---|---|
| Today | N/A | N/A | N/A | N/A |  6.7 mp/h |  30% | 55.4° 50° |
| Saturday, May 4 | Low | Low | Low | None | 13.4 mp/h |  | 60.8° 50° |
| Sunday, May 5 | Low | Low | None | None | 8.9 mp/h | 90% | 57.2° 51.8° |
AQI US, Metric