Less than a week after it was 20°C in Toronto, Environment Canada has issued a frost advisory for the city.
The advisory was issued on Saturday morning and warns that frost is possible tonight and early Sunday morning as temperatures fall to nearly 0°C.
The weather authority said frost may damage crops, and advises taking preventative measures to protect frost-sensitive plants and trees.
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The frigid weather is not expected to last long.
According to Environment Canada’s forecast, sunny skies will push temperatures back up to 13°C on Sunday.