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| Dark, menacing clouds advance on the rising sun this past week on Ile Perrot. It certainly has felt like October all week in Montréal, with chilly temperatures, plenty of rain, drizzle and gusty winds. In terms of fall foliage, many locations in and around Montreal are nearing peak colour this weekend. (Valley Weather) |
Strengthening low pressure is forecast to move across Lake Huron and down the St. Lawrence Valley on Friday, bringing with it some steady rainfall and gusty winds. A warm front will lift north towards the United States border on Friday morning, with a period of heavy rain likely ahead of it. Winds will veer to the northeast gusting at times up to 50km/h in Montreal during the morning hours. As the storm system shifts east of the city, winds will back to the southwest and eventually west, gusting up to 60km/h.
In terms of rainfall, we can expect another 15 to 25mm, to go along with our 20 to 40mm that fell on Tuesday. Temperatures will be quite chilly with this fall storm, with Montreal never really get into the warm sector. Expect highs on Friday near 9C (49F), dropping steadily behind the cold front to the freezing point by Saturday morning.
Some regions across central and northwest Quebec can even expect some snow on the backside of the low pressure, with as much as 10cm forecast for Chibougamau and the Saguenay region. Some flurries may even spread across the upper elevations of the Eastern Townships and Green Mountains into Saturday morning.
Saturday will be a breezy, cold day, with partial clearing and temperatures holding in the single digits. Saturday night may be the coldest of the fall so far, with lows expected below freezing for most locations, along with widespread frost, 0C to -2C for Montreal.
High pressure will build into the region on Sunday, with warming temperatures expected through Thursday, along with an extended period of dry weather. Highs will range from the lower teens Sunday to the middle and even upper teens by Thursday.
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