For Montreal, a cold rain will develop late today and change over to a mix of wet snow overnight and taper off to flurries on Friday. Most valley locations will receive little if any accumulations at this time. Upper elevations of the Eastern Townships may have 5cm (up to 2 inches) by Friday morning. Just a few flurries are forecast for Ottawa and eastern Ontario. Moderate snow will fall in the Adirondacks as well as the Green and White Mountains, where 5-20cm (2-8 inches) is possible tonight and Friday. Winter Weather Advisories have been issued for those regions. Winds will be strong in all regions, out of the northeast then northwest 30-50km/h. Temperatures will be turning colder, 7C (45F) today for Montreal, 1C (33F) overnight and only 3C (39F) Friday and Saturday.
Looking ahead to next week the coldest air of the season is poised to head south across the Great Lakes and into Ontario and Quebec. Some snow is possible next week as well.