TORONTO- Toronto and the rest of southern Ontario are bracing for a severe heat wave this week, with daytime temperatures climbing into the mid-30s and humidex values potentially soaring as high as 45. In response to the scorching conditions, Environment Canada has issued a yellow heat warning for the region.
The weather agency stated that the heat event will begin on Monday and is expected to last until either Wednesday or Thursday evening. Tuesday is projected to be the peak of the heat wave, with maximum temperatures approaching 36°C in several areas. Residents will find little overnight relief, as temperatures are not expected to drop below 20°C. Officials also warned that the hot and humid air could cause air quality to deteriorate, pushing the Air Quality Health Index into the high-risk category.
Authorities are urging everyone to take precautions, noting that extreme heat can pose serious health risks to anyone, particularly older adults, people living alone, and vulnerable individuals. Symptoms of heat stroke include red, hot skin, dizziness, nausea, confusion, and loss of consciousness. Environment Canada recommends scheduling outdoor activities during the cooler parts of the day, limiting direct sun exposure, staying hydrated, and wearing lightweight, light-colored, and loose-fitting clothing along with a wide-brimmed hat. During the summer’s first heat wave two weeks ago, Toronto hospitals recorded 39 heat-related emergency room visits.
In response to the warning, the City of Toronto has activated its heat relief strategy. Starting Monday, four mobile water trailers offering drinking fountains and bottle-filling stations will be deployed at Nathan Phillips Square, Mel Lastman Square, East York Civic Centre, and Barbara Hall Park, remaining active until the warning is lifted. Additionally, the city has opened more than 500 cool spaces, including civic centres and Metro Hall, which will operate on extended hours. More than 170 splash pads will be open daily from 9 a.m. to 9 p.m., and eight of the city’s 57 outdoor pools will extend their hours to help residents cool off.
