| Date | Detailed Forecast |
|---|---|
| Today | Mainly sunny. Wind northwest 20 km/h. High 18. UV index 7 or high. |
| Tonight | A few clouds. Low 10. |
| Tue, 16 Jun | A mix of sun and cloud. 40 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming south 20 km/h gusting to 40 in the morning. High 22. Humidex 25. UV index 7 or high. |
| Night | Cloudy periods with 40 percent chance of showers. Low 11. |
Alliston forecast for Monday, June 15th
