Montreal's First Summer Heat Wave In June Is Set to Break Records & Probably Your AC

The weather is just warming up. ☀️

​People sunbathe on the sand at the beach in Montreal's Old Port.

People sunbathe on the sand at the beach in Montreal's Old Port.

Editor

Montreal weather sizzled over the weekend, toppling heat records with a sweltering 31.2 C on May 28. But don't expect the temperature to mellow out anytime soon. Mother Nature is set to unleash a summer heatwave in June that promises to bring more stifling warmth than a packed metro car during peak hours.

May 29 is expected to see temperatures hover around seasonal averages, according to MétéoMédia, followed by an influx of much higher temperatures by June 1.

Montreal, Gatineau, Quebec and Val-d'Or, which have never recorded June 1 temperatures above 30 C, may be in for some record-breaking highs. Forecasts are predicting temperatures between 30 C and 32 C. Even Sherbrooke could see its 30.2 C record shattered.

The looming danger of wildfires is expected to intensify over the upcoming days, with a significant portion of Quebec at high risk. Imminent hot weather will make conditions conducive to start and spread of wildfires, especially in the western and southern parts of the province.

Ahead of summer's official start on June 21, Quebecers should also brace for the return of the Humidex Index. With the added mugginess in the air, it might start to feel like a sticky 35 C in some areas.

The impending heat wave won't spare evening temperatures either. Mid-week forecasts suggest the mercury may stubbornly refuse to dip below 20 C when the sun takes a break, making after-dark a sweaty nightmare for those without air conditioning.

Consider this your official reminder to stock up on popsicles, invest in a decent fan and maybe make friends with someone who has access to a pool.

  • Sofia Misenheimer
  • Sofia Misenheimer is a former editor of MTL Blog. She has an M.A. in Communication Studies from McGill University. In her spare time, she shares little-known travel gems via #roamunknownco, and can often be found jogging in the Old Port.

Canadian travellers will soon need to pay for a special pass just to enter Europe

Travellers under 18 or over 70 won't have to pay the fee.

A class action says Uber Eats has been hiding fees and Canadian users could be owed money

If you've ordered delivery through the app since May 2023, you're likely included.

Montreal's Olympic Stadium is getting a major interior renovation — and a Céline Dion show?

The government has chosen not to disclose the cost of the renovations yet.

Trump just threatened increased tariffs on Canada over wildfire smoke in US cities

"We are holding Canada responsible for the fact that they are not properly maintaining their Forests."

Quebec has 5 of Canada's 10 best hotels for 2026, but a BC spot reigned supreme

The Ritz-Carlton Montreal is the Montreal's highest finisher, landing in fourth place.

9 most romantic restaurants in Montreal for a summer date night

Consider your next date night spot sorted. 🍝