Frost advisory
Some plants may be damaged or even destroyed by frost.
What:
Frost and/or freeze. Temperatures falling to near or just below freezing.
Where:
A large swath of southern Ontario. Locations near the lakeshore and urban centers may remain mild enough to limit frost.
When:
Early this morning. Frost is possible again in some areas tonight and early Thursday morning.
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@canada.ca or tweet reports using #ONStorm.
Today – May 12, 2021
Sunny. Wind becoming north 20 km/h gusting to 40 near noon. High 16. UV index 7 or high.
Tonight
Clear. Low plus 1 with patchy frost.
Thu, 13 May – Sunny. Wind northwest 20 km/h becoming light early in the afternoon. High 20. UV index 8 or very high. Night – Clear. Low 7.
Fri, 14 May – Sunny. High 19. Night – Clear. Low 8.
Sat, 15 May – A mix of sun and cloud. High 20. Night – Cloudy periods. Low 10.
Sun, 16 May – A mix of sun and cloud. High 20. Night – Cloudy periods. Low 10.
Mon, 17 May – Cloudy with 60 percent chance of showers. High 20. Night – Cloudy with 60 percent chance of showers. Low 13.
Tue, 18 May – Cloudy with 60 percent chance of showers. High 20.
