Summit Lake Weather Forecast

    • 6
    • 14

    Blowing Snow

    • 9
    • 31

    Mostly Cloudy

    • 0
    • 18

    Chance Snow

    • 6
    • 12

    Mostly Cloudy

    • 6
    • 16

    Mostly Cloudy

    • 6
    • 20

    Mostly Cloudy

Today 29 Dec Grant

Patchy blowing snow in the morning. Partly sunny. Brisk with Highs around 12. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph, Diminishing to 10 to 15 Mph with Gusts up to 25 Mph in the afternoon. Wind chill Values as low as 22 below.

Tonight 29 Dec Grant

Partly cloudy. Lows around 6 above. Temperature rising to around 18 after midnight. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Summit Lake Temperature Statistics

December Temperature

Sisseton, Sisseton Municipal Airport (26.1 miles)

  • Lowest 7 December, 2025

    -13 °F

  • Average December

    17.2 °F

  • Highest 16 December, 2025

    51.1 °F

Climate (2020–Present)

Sisseton, Sisseton Municipal Airport (26.1 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    57.2 °F
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