The London region has recorded at least 13 days this month with highs of 30 C or above.

People are cooling down at beaches, splash pads and indoors as heat warnings are issued, but health experts are warning against gathering indoors, whether it be in a home or cooling or shopping centre.

The humidex could reach the high 30s to low 40s by Sunday, Environment Canada reports.

With a continuing heatwave and coronavirus safety restrictions, residents are upset about the timing system at a public pool in Notre-Dame-de-Grâce.

The City of Guelph has moved its outdoor water-use restrictions to 'Level 1 Yellow' amid a heatwave in southern Ontario.

Environment Canada is warning residents in the greater Montreal area to watch out for severe thunderstorms this Wednesday afternoon and early evening.

Cities around the Hamilton-Niagara region have opened up cooling centres to avoid the onset of heat-related illnesses.

Police say they were alerted just before 11 a.m. after the young girl was found unconscious in an above-ground pool.

The City of Peterborough is extending the hours of municipal splash pads and reminding of coronavirus protocols during the extreme heat.

"I want people to make sure they're taking care of their pets and I also want people to check on their neighbours," said WFPS assistant chief Jay Shaw.