Frost Advisory

• Big warm-up to follow blast of cold air in southern Ontario

  Some of the coldest temperatures since last month are expected in southern Ontario, but it won't last with a big warm-up on the way. 

  Weather

  Apr 24
  
• Parts of southern Ontario under frost warnings as weather begins to bite

  An area around Toronto and another in the St. Catharines area are both under frost advisories lasting from Sunday evening into Monday morning.

  Weather

  Oct 22, 2023
  
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• Cover your plants: Much of Alberta under frost advisory as temperature set to reach freezing

  Environment Canada issues frost advisories when temperatures are expected to reach zero during the growing season, leading to potential damage or destruction of plants and crops.

  Weather

  Sep 20, 2023
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• Wednesday night frost advisory issued for large swath of Ontario

  For the second straight night, gardeners and growers in southern Ontario are going to need to keep a close eye on the overnight temperatures due to a risk of frost.

  Weather

  May 17, 2023
• Toronto under frost advisory as temperatures expected to fall around freezing mark

  Environment Canada says Toronto is under a frost advisory for Wednesday night into Thursday morning as temperatures are expected to drop to around the freezing mark.

  Weather

  Apr 26, 2023
• Frost advisory in effect for Toronto as temperatures expected to drop

  Environment Canada has issued a frost advisory for Toronto as temperatures are expected to hit near, or just below, the freezing mark.

  Weather

  Oct 27, 2022
• Frost advisory issued for parts of southern Ontario with temperature drop expected

  A frost advisory has been issued for parts of southern Ontario with temperatures expected to drop overnight. 

  Weather

  Oct 7, 2022
• Cover your plants: Central, southern Alberta under 1st frost advisory of growing season

  Environment Canada issues frost advisories when temperatures are expected to reach the freezing mark during the growing season, possibly damaging plants and crops.

  Weather

  Sep 9, 2022
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• ‘Cover up plants’: Environment Canada issues frost advisory for Toronto

  Environment Canada said some plants "may be damaged or even destroyed" by the frost.

  Weather

  Apr 28, 2022
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• Frost advisory issued for Toronto with below seasonal temperatures expected

  "Below seasonal temperatures and even some late-season snow flurries are likely tonight and early Wednesday," Global News meteorologist Anthony Farnell said.

  Weather

  Apr 26, 2022