Montreal's Heat Wave & Severe Thunderstorm Watch Will Continue Through Monday

The humidity in the air could make it feel up to 39°C on Sunday.

People walking under a misting system in downtown Montreal to cool off during a heatwave.

People walking under a misting system in downtown Montreal to cool off during a heatwave.

Editor
Montreal's hot and humid weather that started last week is expected to continue through Monday morning. Humidity will make it feel somewhere between 34 and 39 degrees on Sunday afternoon and into the evening, while temperatures remain uncomfortable through the night with lows of 20°C.

"Drink plenty of water even before you feel thirsty and stay in a cool place," recommends Environment Canada (EC).

Heat warnings are issued when high temperatures or humid conditions elevate the risks of heat illnesses, like heat stroke or heat exhaustion.

Meanwhile, severe thunderstorms — capable of producing strong wind gusts, large hail and heavy rain — are also expected to hit the metropolis and surrounding areas in the late afternoon on Sunday.

"Strong wind gusts may toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Large hail can damage property and cause injury," EC warns.

Yesterday afternoon, severe thunderstorms caused damage from the Outaouais to the North Shore. Hail up to 5 centimetres in diameter were reported over some communities in the Outaouais, the Laurentians and northern Lanaudière.

A tornado even hit Saint-Adolphe-d'Howard in the Laurentians, just over an hour north of Montreal. Strong winds heavily damaged dwellings and broke or uprooted numerous trees.

EC warns that Montreal, Châteauguay, Laval and Longueuil could see comparable conditions overnight.

Severe thunderstorm watches are issued when atmospheric conditions could produce torrential rainfall, damaging winds and sizeable ice pellets.

  • 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.

I went to Montreal without speaking any French — Here are 5 things no one tells you

I showed up with three French words and a lot of confidence — that was my first mistake.😬

McGill is Canada's #1 university for creating billionaires and the wealth gap is wild

McGill's billionaire alumni have a combined net worth of over $93.1 billion.

You could get slapped with fines up to $1K PER DAY for breaking this Montreal tempo rule

Last week was the removal deadline across the majority of the island.