Sunny skies ahead in Montreal, but temperatures set to dip

Trees are seen under sunny skies in Montreal on Oct. 18, 2026. (CityNews)

Posted October 18, 2026 1:12 pm.

Montreal is in for a stretch of sunny fall weather this week, though temperatures are expected to gradually cool as the days go by.

Sunday will see a high of 14 Celsius before temperatures drop to an overnight low of 8 C.

Sunshine and fall colours are seen at King George Park in Montreal on Oct. 18, 2026. (CityNews)

Sunshine will continue into Monday, with a high of 17 C and an overnight low of 6 C.

Tuesday will remain sunny, with a high of 16 C, before temperatures ease to 13 C on Wednesday.

By Thursday and Friday, highs will reach just 11 C, despite plenty of sunshine. Overnight temperatures will also dip closer to the freezing mark, with a low of 0 C expected Friday night.

Sunshine and fall colours are seen at King George Park in Montreal on Oct. 18, 2026. (CityNews)

Saturday will bring a slight warm-up, with sunny skies and a high of 13 C.

While the sunshine is expected to stick around throughout the week, cooler mornings and evenings mean a sweater or light jacket will come in handy.

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