Toronto's weather forecast for this weekend is wild and a dramatic turn is coming

Summer in the 6ix keeps throwing up surprises. ☀️⚡

A view of the Toronto skyline from Lake Ontario during stormy weather with cloudy sky.

Toronto's weather forecast is taking a dramatic turn this weekend.

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Writer

Toronto's weather is heating up this weekend, with steamy temperatures, a humidex in the 40s, and a good chance of stormy surprises. If you're making plans, keep water, sunscreen, and an umbrella nearby.

According to Environment Canada, Friday will be a summer classic with sunny skies, a high of 27 C, and a humidex of 32 C. The UV index is a very high 9, so sun protection is essential. Things cool off nicely overnight with clear skies and a low of 17 C, making it perfect for an evening walk or a late-night hang.

By Saturday, the temperature starts to feel really hot. It'll be 31 C by the afternoon, but the humidex will make it feel more like 41 C.

Clouds roll in early, bringing a 30% chance of showers and a risk of thunderstorms later in the day. Winds from the south at 20 km/h will stir things up, but not enough to cool you down. Expect muggy, heavy air, especially if you're spending time outside. Saturday night stays warm, with cloudy periods and a low of 20 C.

Sunday offers a mix of sun and cloud, with another scorcher on the way, as temperatures reach 31 C once again. The evening brings a 40% chance of showers, so sunset plans could get rained out.

By Monday, things shift. It'll still be cloudy, but with a 60% chance of showers and a more comfortable high of 24 C. Overnight, there's a 40% chance of rain, and the low drops to 17 C.

This weekend is expected to be hot, humid, and somewhat chaotic weather-wise.

Storms are possible, and the humidity will be relentless. So, if you're heading to the beach, hitting up a patio, or exploring the city, plan to stay cool and flexible and don't be surprised if the skies open up without much warning.

AI tools may have been used to support the creation or distribution of this content; however, it has been carefully edited and fact-checked by a member of Narcity's Editorial team. For more information on our use of AI, please visit our Editorial Standards page.

  • Originally from Ireland, Tomás Keating is a Toronto-based Contributing Writer for Narcity. After graduating with a Masters in Journalism from the University of Galway in 2019, Tomás utilized his passion for news, current affairs, pop culture and sports as a digital journalist before relocating to Toronto in 2024. In his spare time, Tomás loves exploring the city, going to the cinema and playing Gaelic football with his local GAA club in Toronto.

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