Extreme heat with humidex values reaching the 40s has triggered widespread power outages across Canada, as Environment Canada warns the current heat wave is 'very close to being the warmest on record.' Heat warnings remain in effect for multiple provinces, with temperatures soaring into the mid-30s and humidity making it feel even hotter.
Record-Breaking Temperatures and Humidex
Environment Canada has issued heat warnings for parts of Ontario, Quebec, and the Maritimes, where humidex values are expected to approach 45 in some areas. The agency stated that the ongoing heat wave is 'very close to being the warmest on record,' with peak temperatures expected in Ottawa today. In Montreal, a heat warning continues as humidex nears 42.
The extreme heat has led to the cancellation of World Cup screenings at Nathan Phillips Square in Toronto, as officials cited concerns for public safety. Toronto is hosting a Portugal vs. Croatia match as its last 2026 FIFA World Cup game today.
Power Outages and Infrastructure Strain
Widespread power outages have been reported across the affected regions, straining infrastructure as demand for electricity surges due to air conditioning use. In Ontario, the Independent Electricity System Operator has issued a plea for conservation, asking residents to reduce non-essential electricity use during peak hours. Local utilities are working to restore power, but high demand is causing intermittent failures.
In Guelph, a brewery closed for several days following a fire, though the cause is not yet linked to the heat. Meanwhile, Ontario Forest Fires reported two new wildland fires in the northeast region as of Tuesday evening, bringing the total number of active fires in the area to 21.
Health and Safety Warnings
Health officials are urging residents to take precautions, including staying hydrated, avoiding outdoor activities during peak heat, and checking on vulnerable individuals. 'It actually harms you,' said an expert regarding the use of fans in extreme heat, noting that fans can exacerbate dehydration by blowing hot air over the body. Instead, officials recommend seeking air-conditioned spaces, taking cool showers, and wearing lightweight clothing.
In Barrie, police are investigating a sudden death near downtown, while in Lake Simcoe, a man died during the extreme weather. In Vancouver, a pedestrian was seriously injured in a hit-and-run crash, and a man charged in an unprovoked assault on a beach was released from custody.
Transportation Disruptions
The heat has also disrupted transportation. In Ottawa, thunderstorms grounded a plane carrying Prime Minister Mark Carney, forcing the cancellation of his trip to Alberta. In Montreal, REM service was interrupted between Canora and Côte-de-Liesse due to a track problem. OC Transpo in Ottawa is offering free rides for youth under 18 this summer to help them stay cool.
In the Maritimes, heat warnings have been issued, and Nova Scotia RCMP pulled over a man for speeding, then arrested him for impaired driving. In Manitoba, a storm in Whyte Ridge was confirmed as a tornado, and the Rossburn tornado rating was upgraded.
Community and Celebrations
Despite the heat, Canada Day celebrations continued across the country. Thousands attended events in Wascana Park in Regina, where an Elvis tribute artist performed. New Canadians celebrated their first Canada Day as citizens, with one saying, 'I'm so blessed.' Prime Minister Carney emphasized unity in his Canada Day address, but also discussed 'serious immediate priorities' with Inuit leaders.
In Windsor, officials reminded residents of the rules for setting off fireworks. In St. Thomas, a heavy police presence was reported on Talbot Street. The Roseland condo development in Barrie is moving forward after rezoning approval.
