A major heat wave will be settling across southern Ontario and Toronto this week, with daytime highs consistently reaching the mid-30s and humidex values easily surpassing the 40s.
According to The Weather Network, a record-breaking heat dome that developed across the eastern half of the U.S. will extend into the Great Lakes region this week, resulting in dangerously hot temperatures throughout Canada Day.
On Tuesday, Toronto is expected to see heavy thunderstorms in the morning, after which temperatures will rapidly heat up. Tuesday’s daytime high of 33°C is expected to feel closer to 43°C with the humidity, based on the weather channel’s 7-day forecast.
Conditions will barely improve by the time evening rolls around, when temperatures will hover around the 30°C mark, but will feel closer to 40°C. We won’t be getting much relief overnight, as temperatures will remain elevated at 24°C (or 32°C with the humidity).
On Canada Day (which falls on Wednesday this year), Toronto faces a risk of thunderstorms throughout the day, plus dangerous heat. The daytime high of 33°C is expected to feel like a scorching 44°C. Throughout the evening, humidex values will range between the upper 30s and low 40s.
Throughout Thursday, more thunderstorms are expected, and the daytime high of 34°C is expected to feel like 43°C. On July 2, the city is also set to host a round of 32 FIFA World Cup match between Portugal and Croatia at Toronto Stadium at 7 p.m.
According to The Weather Network’s forecast, the risk of thunderstorms will persist throughout the evening on Thursday, and the actual temperature of 30°C is expected to feel like 40°C with the humidity.
It goes without saying, but if you’re heading out to the game or to cheer on your team, make sure to stay extra hydrated by drinking water constantly, taking breaks in the shade, wearing loose clothing, and immediately seeking air-conditioned spaces if you feel dizzy or lightheaded.
The heat wave will remain in place on Friday, when the daytime high of 30°C will still feel like 40°C with the humidity. Things will start to just barely cool up by Saturday, when the daytime high of 29°C will feel like 37°C.
On Sunday, more thunderstorms are expected, and humidex values will drop to the mid-30s by the afternoon.
Overall, the Old Farmers’ Almanac predicts that the average temperature in July in southern Ontario will be 21°C, which is 1°C below average in the east and 1°C above average in the west. Overall precipitation totals are expected to hit 95 mm, which is 70 mm above average in the east, and 40 mm below average in the west.
Originally published on blogTO.
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