Ellisburg Weather Forecast

    • 30
    • 35

    Snow Likely

    • 28
    • 39

    Rain/Snow

    • 22
    • 33

    Mostly Cloudy

    • 28
    • 39

    Rain/Snow Likely

    • 23
    • 40

    Rain/Snow Likely

    • 24
    • 36

    Rain/Snow Likely

Today 22 Dec Jefferson

Cloudy with a 40 percent chance of snow Showers. Highs Ranging from the lower 30s inland to the mid 30s along the lake Ontario shore. Southwest Winds 10 to 15 Mph.

Tonight 22 Dec Jefferson

Cloudy. A chance of snow Showers overnight. Near steady Temperatures Ranging from the upper 20s across the tug hill to the lower 30s along the lake Ontario shore. Light Winds. Chance of snow 50 percent.

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Ellisburg Temperature Statistics

December Temperature

Watertown, Watertown International Airport (18.6 miles)

  • Lowest 5 December, 2025

    -6 °F

  • Average December

    25.4 °F

  • Highest 19 December, 2025

    55 °F

Climate (2020–Present)

Watertown, Watertown International Airport (18.6 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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