Frost, yes frost, advisory in effect for much of southern Ontario and parts of GTA

It’s going to be a chilly night in parts of Ontario, leading Environment Canada to issue the first frost advisory of the season.

Temperatures are expected to fall near the freezing mark overnight in much of southern Ontario as well as the province’s northeastern region.

The agency says residents should cover up fruit trees and vegetable plants that could be damaged by the frost.

The advisory stretches across southern Ontario from Cornwall, all the way west to Dufferin County and north to Algonquin Provincial Park.

In the Greater Toronto Area, it covers the northern parts of York and Durham Regions, including Newmarket, Georgina, Uxbridge and Beaverton.

Parts of northeastern Ontario, including the Greater Sudbury area and North Bay, are also under the warning.

Environment Canada issues frost advisories whenever temperatures are forecast to reach 0 C during the growing season.

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