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‘Heat dome’ over Ontario and Quebec causing wild weather across much of Canada

Jun 22, 2025 | 12:35 PM

TORONTO — Blame the heat dome hanging over Ontario and Quebec for some of the strange weather hitting other parts of the country.

Environment Canada meteorologist Julien Pellerin says scorching temperatures over the eastern part of the continent are causing below-normal temperatures in other regions.

On Saturday, the weather agency warned that areas in British Columbia could face heavy showers, and over some of the highway summits, the possibility of wet snow.

Pellerin says the Prairies are also experiencing colder-than-normal temperatures and severe thunderstorms that can be linked to the extreme heat elsewhere.