Heat warning issued as humidex reaches 40°C in Montreal

Jul 18 2020, 3:50 pm

Things will be staying hot in the city, as Environment Canada has issued a heat warning for Montreal on Saturday.

Effecting Châteauguay – La Prairie, Laval, Longueuil – Varennes, and Montréal Island, the agency says a warm and humid air mass has moved in over Southern Quebec and will “persist over the next few days.”

With the humidex, temperatures are expected to reach between 36ºC and 40ºC on Saturday, while staying mostly sunny throughout. There will be a few clouds in the evening with a low of 23ºC.

Hot and humid air can deteriorate air quality and the agency encourages people to watch for the effects of heat illness, including swelling, rash, cramps, fainting, heat exhaustion, heatstroke, and the worsening of some health conditions.

Heat warnings are issued by Environment Canada when temperatures reach high enough to cause an elevated risk of heat illnesses.


Environment Canada

Sunday is predicted to start off Sunny in the morning followed by a mix of sun and cloud with a chance of showers turning to thunderstorms late in the afternoon. Winds may reach up to 60 km/h.

Temperatures are expected to reach a high 34ºC, and feel like 42ºC during the day, with a chance of more rain in the evening.

Monday might bring some relief with sun and clouds and a high of 31ºC during the day and lows of 18ºC at night.

DH Montreal StaffDH Montreal Staff

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