Winona State Forest Weather Forecast

    • 1
    • 17

    Chance Snow Showers

    • 13
    • 24

    Snow

    • 20
    • 26

    Snow Showers Likely

    • 22
    • 35

    Chance Rain/Snow

    • 29
    • 42

    Rain/Snow

    • 6
    • 30

    Chance Snow Showers

    • 25
    • 32

    Snow Showers Likely

Today 14 Dec Oswego

Lake effect snow Early, then a chance of snow Showers late. Additional accumulation an inch or less. Cold. Temperatures Remaining between 15 and 20. North Winds 10 to 15 Mph. Chance of snow near 100 percent.

Tonight 14 Dec Oswego

A chance of snow Showers Early, then lake effect snow from late evening on. Additional accumulation up to 2 Inches in the most persistent Snows. Cold with Lows Ranging from zero to 5 below across the tug hill to 10 to 15 along the lake Ontario shore. Northwest Winds 5 to 10 Mph, becoming light. Chance of snow 80 percent.

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Winona State Forest Temperature Statistics

December Temperature

Watertown, Watertown International Airport (20.5 miles)

  • Lowest 5 December, 2025

    -6 °F

  • Average December

    22.6 °F

  • Highest 3 December, 2025

    36 °F

Climate (2020–Present)

Watertown, Watertown International Airport (20.5 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    57.6 °F
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