Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Today's Pollen Count in Guelph
None
Air quality
Air quality of Guelph today
| AQI US AQI | Good | |
| PM2.5 µg/m³ | Good | |
| O3 µg/m³ | Good | |
| NO2 | Good |
3D animated air pollution map
Allergy forecast
Guelph pollen count forecast
| Day | Index | Tree | Grass | Weed | Wind | Weather | Temperature |
|---|---|---|---|---|---|---|---|
| Today | N/A | N/A | N/A | N/A |  11.2 mp/h |  | 66.2° 46.4° |
| Friday, May 3 | None | None | None | None | 11.2 mp/h |  90% | 64.4° 48.2° |
| Saturday, May 4 | None | None | None | None | 8.9 mp/h | 90% | 62.6° 51.8° |
AQI US, Metric