Heat warning for Montreal as temperatures climb

The sun in the sky in downtown Montreal Aug. 7, 2025. (CityNews)

By Jessica Barile

Posted August 8, 2025 8:56 am.

Last Updated August 8, 2025 11:38 am.

Get the sunscreen ready, Montreal is facing a heat warning as summer temperatures soar.

Environment Canada warns Montrealers that a period of warm and humid weather is expected during the next few days.

Today will be mainly sunny with a high of 31°C, tonight expect some clouds with a low of 20°C.

Saturday, a mix of sun and clouds with a low of 22°C.

People walking alongside the Lachine canal in Montreal on August 8, 2025. (Jonathan Nudell, CityNews)

Sunday will be a scorcher, with temperatures expected to reach a high of 34°C and low of 22°C.

On Monday, the heat continues with a high of 33 °C and low of 22°C.

Tuesday, high of 33°C and partly cloudy at night with a low of 22°C.

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