If you’re dreaming of a white Christmas, southern Ontario may deliver—but not without a wintry punch. Cold air, icy wind chills, and up to 50 cm of snow in some areas could make for a picturesque yet challenging start to the holiday season.
Morning Snapshot: A Frosty Awakening
The morning of Dec. 22 begins with a bone-chilling start across southern Ontario. Wind chills will make temperatures feel significantly colder, including:
- Mississauga and Brampton: Feels like -25°C
- Hamilton: Feels like -24°C
- Halton Region: Feels like -21°C
- Oshawa: Feels like -26°C
Those stepping outside will be greeted with a mix of sunshine and cloudy skies. Early risers might catch a stunning sunrise at 7:48 a.m., a welcome sight after weeks of overcast skies.
Afternoon: Winds Ease, But Cold Holds Firm
Although wind speeds will ease to 15 km/h, the bitter cold won’t let up. Daytime highs will remain far below freezing, including:
- Mississauga, Brampton, Halton: High of -9°C, dropping to -12°C by late afternoon
- Durham and Hamilton: High of -11°C
Winter Blast Hits Southern Ontario: Snowfall, High Winds, and Deep Freeze Warnings on this Weekend
Evening: Snow and Clouds Take Over
As the sun sets at 4:41 p.m., southern Ontario skies will cloud over, bringing a chance of snow:
- Mississauga: 40% chance of flurries
- Durham Region: Higher probability at 60%
Brisk winds may return overnight, amplifying the cold as temperatures drop further:
- Mississauga, Brampton, Halton: -10°C
- Durham Region: -13°C
- Hamilton: The chilliest at -14°C
Travel Advisory: Prepare for Winter Weather Disruptions
With the potential for significant snowfall in some areas, travel conditions may deteriorate quickly. If you’re planning to be on the roads, exercise caution and stay updated on weather alerts.
This wintry blast serves as a frosty reminder that southern Ontario’s winter is here to stay—just in time to paint a festive, snowy picture for the holidays.
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