Ontario Frost Warning

• 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
  
• ‘Cover up plants’: Frost warning issued for large section of Ontario by Environment Canada

  Environment Canada has issued a frost warning for a portion of Ontario, stretching from Waterloo Region to Cornwall, and as far north as Sault Ste. Marie and North Bay.

  Canada

  May 16, 2023
  
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• Frost advisory issued for eastern Ontario

  Environment Canada says temperatures may drop below zero on Friday evening.

  Weather

  Oct 4, 2019