Ontario Long Range Weather Forecast for December 14th 2025 to January 13th 2026
December 2025
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12Snowy weather.
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16Dry, turning colder.
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20Light snow sweeps east, then becoming fair.
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24Increasingly cloudy skies for Christmas and Boxing Day.
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28Unsettled conditions move in from the west as we close the book on 2025.
January 2026
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1Ontario rings in the New Year under a wintry veil. southern Ontario sees gusty winds and lake-effect snow. A notable snowstorm is likely to develop by the 3rd.
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4Bitter cold for northern Ontario. Overcast, light flurries eastern Ontario.
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8Fair skies southwestern Ontario, but by the 10th, a strong low-pressure system tracks through central Ontario, bringing heavy snow and gusty winds.
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12Mild conditions for southern and eastern areas, with gusty winds and scattered snow squalls. Western Ontario may see brief thaws.
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