Chilly Start to Thanksgiving Weekend With Potentially the First Flurries of the Season Overnight Friday in Parts of Southern Ontario
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NOTE: You can click on the map to open a zoomable image which will be easier to read.
So far we’ve seen a fairly mild start to October across Southern Ontario with daytime temperatures well into the twenties for multiple days in a row this week. But don’t be fooled, winter is just around the corner and that reality will quickly set in over the next 24 hours as a cold front sweeps across the region. This will usher in much colder air into Southern Ontario with daytime highs in the mid to upper single digits on Friday. Lake effect showers will also be ongoing around Georgian Bay and Lake Huron throughout the day on Friday. Around 5-15mm of rainfall is expected for those southeasts of the lakes including Sarnia, Grand Bend, Collingwood and Barrie.
As we head into Friday night, the temperature is expected to further drop and come close to the freezing mark in some locations. Particularly the higher elevations of the Dundalk Highlands (Orangeville, Shelburne etc.), Northern Muskoka and Haliburton Highlands will see temperatures near or slightly below the freezing mark. As a result, there is a chance that the lingering lake effect showers throughout the region could come down in the form of wet flurries overnight Friday into Saturday morning. This includes parts of Huron and Grey-Bruce counties away from the shoreline, Hanover, Meaford, Blue Moutain, Shelburne and Orangeville overnight. And the chance will shift towards the Muskoka, Haliburton and Bancroft regions in the morning as the bands of lake effect precipitation move to the north.
It’s important to emphasize that this forecast is very preliminary and confidence is low since it really depends on the exact air temperature. Not everyone within our forecast will see the first snow of the season. And even if we do see snow, it will likely melt on contact and be gone by sunrise so unless you wake up early in the morning, you won’t even know that it snowed.
NOTE: You can click on the map to open a zoomable image which will be easier to read.
Despite the chilly (and potentially snowy) start to the Thanksgiving Weekend, we are expecting fairly decent weather for your Thanksgiving gatherings on Sunday. Temperatures during the day will range from the lower to mid-teens across Southern Ontario. Some rain will move through Central and Eastern Ontario during the early morning hours, but it should be done by the early afternoon. The rest of Southern Ontario will see a mix of sun and clouds for your Thanksgiving Sunday so maybe consider outdoor gatherings and take advantage of that fresh fall air!
For those that celebrate on Monday, the forecast will be basically a carbon copy of what we see on Sunday with temperatures slightly warmer and fewer clouds. On behalf of the entire Instant Weather team, we’d like to wish you a Happy Thanksgiving! We are incredibly grateful for your support throughout these years as we try to bring more context to the weather.
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