Cooler temperatures, chance of thunderstorms in Montreal before Thanksgiving weekend
Posted October 9, 2026 10:19 am.
Montrealers can expect a mix of sun and cloud Friday, with a chance of showers and thunderstorms in the afternoon as temperatures reach a high of 13 Celsius.
Environment And Climate Change Canada (ECCC) forecasts west winds gusting up to 40 km/h, with a 40 per cent chance of showers. The UV index will reach 3, or moderate.
Temperatures will dip to a low of 3 C overnight, with a risk of frost under partly cloudy skies.
Saturday is expected to be sunny, with a high of 13 C and an overnight low of 8 C.
Warmer weather is on the way Sunday, when temperatures are forecast to climb to 19 C as cloud cover increases.
The mild conditions are expected to continue Monday, with a high of 19 C, although rain is forecast overnight. Rain is expected to continue Tuesday, with a high of 18 C, followed by showers overnight.
Cooler, sunnier weather is expected to return Wednesday, with a high of 11 C. Thursday is also forecast to be sunny, with temperatures reaching 12 C.
