Watertown Weather Forecast

    • 18
    • 26

    Chance Snow

    • 7
    • 27

    Blowing Snow

    • 25
    • 33

    Mostly Cloudy

    • 21
    • 41

    Mostly Cloudy

    • 22
    • 31

    Mostly Cloudy

    • 30
    • 41

    Mostly Cloudy

    • 27
    • 42

    Partly Sunny

Today 19 Dec Codington

Partly sunny. Patchy blowing snow. Near steady temperature in the lower 20s. South Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 19 Dec Codington

Mostly cloudy with a chance of snow. A slight chance of freezing rain this Evening, then a chance of freezing rain after midnight. Little or no snow accumulation. Not as cold with Lows around 18. Southwest Winds 15 to 20 Mph, becoming northwest after midnight. Gusts up to 35 Mph. Chance of precipitation 40 percent.

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Watertown Temperature Statistics

December Temperature

Watertown, Watertown Municipal Airport (1.2 miles)

  • Lowest 4 December, 2025

    -13 °F

  • Average December

    15.5 °F

  • Highest 16 December, 2025

    45 °F

Climate (2020–Present)

Watertown, Watertown Municipal Airport (1.2 miles)

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  • Average Low 2020–2025

    35.2 °F

  • Average 2020–2025

    45.4 °F

  • Average High 2020–2025

    55.7 °F
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