TORONTO — Hot, humid weather is settling over much of Ontario and parts of Quebec with uncomfortably high temperatures expected to last several days.

Environment Canada is warning of intense heat for all of southern Ontario and half of northeast Ontario, including Windsor, Timmins, Sudbury, Toronto and Ottawa.

The heat wave extends across the provincial border with Quebec, encompassing the Montreal region.

A severe weather meteorologist for Environment Canada says today kicks off a multi-day heat wave that is expected to intensify tomorrow before easing on Monday or Tuesday, depending on the region.

Expected daytime highs could reach 35 C in southern areas and 33 C in the north, with the humidex at or near 40 C.

Parts of Newfoundland and Labrador are also under heat warnings today, wi

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