Frost advisory
Frost may damage frost-sensitive fruit trees and vegetable plants.
Temperatures are near the freezing mark early this morning, particularly for areas inland from the Great Lakes.
Take preventative measures to protect frost-sensitive plants and trees.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
Today – October 16, 2025
Sunny. Fog patches dissipating this morning. High 16. UV index 4 or moderate.
Tonight
Clear. Fog patches developing overnight. Low plus 2 with risk of frost.
Fri, 17 Oct – Increasing cloudiness early in the morning. Fog patches dissipating in the morning. High 17. UV index 4 or moderate. Night – Cloudy periods with 30 percent chance of showers. Low 12.
Sat, 18 Oct – Sunny. High 23. Night – Cloudy with 40 percent chance of showers. Windy. Low 13.
Sun, 19 Oct – Showers. Windy. High 17. Night – Cloudy with 60 percent chance of showers. Windy. Low 8.
Mon, 20 Oct – A mix of sun and cloud. High 17. Night – Cloudy with 40 percent chance of showers. Low 9.
Tue, 21 Oct – A mix of sun and cloud with 40 percent chance of showers. High 16. Night – Cloudy periods with 40 percent chance of showers. Low 7.
Wed, 22 Oct – A mix of sun and cloud with 30 percent chance of showers. High 14.
