Hot temperatures prompted heat warnings throughout parts of Saskatchewan, Manitoba, Ontario, Quebec and nearby regions.

The rise came suddenly after a prolonged warm spell in Ontario, its longest since 1934, with the humidex making it feel hotter still.

Manitoba additionally set a daily high mark record during the same stretch.

Metro Vancouver hit nearly 31 C early in the week at the start of the week before rain starts Tuesday.

Officials advised residents to avoid the sun when danger is highest.