The system that brought a messy start to the week across southern Ontario, with snow and freezing drizzle, will be behind us Wednesday, though the remainder of the week will feature an active weather pattern that could bring some rain, snow and/or freezing rain at times – along with above-zero temperatures in the lead-up to the weekend.
Visit our Complete Guide to Winter 2022 for an in-depth look at the Winter Forecast, tips to plan for it, and much more!
TUESDAY AND BEYOND: STAYING MILD, ACTIVE PATTERN RETURNS LATE-WEEK
The start to the last week of 2021 was not an easy one for travellers, beginning for a dash of snow in the southwest and GTA, and ending with the risk of freezing drizzle, and a few flakes still falling for eastern Ontario.
By the morning it should all have come to a close, but places that saw freezing drizzle may feature some icy surfaces.
Another system will arrive in Ontario on Tuesday night, bringing another chance for snowfall, especially across northern Ontario with perhaps a couple of short-lived centimetres for parts of the south as well.
The active pattern will pick up again into the weekend, beginning Wednesday overnight, with a system that looks to creep into the southwest, spreading across the region and reaching the GTA by the morning. Temperatures will be high enough that much of it could manifest as rain or freezing rain, but it's best to check back nearer the time for certainty.
Temperatures will remain seasonal or slightly above seasonal across the region through the end of the month as Arctic air remains bottled up across Western Canada. Daytime highs look to be a little above zero for many communities across the region, though with ample cloud cover.
A slight shift in the pattern for the first week of January should allow shots of Arctic air to spread east into Ontario at times, but nothing like what we are seeing across the West.
Stay tuned to The Weather Network for all the latest weather updates across Ontario.