Summit Lake Weather Forecast

    • 51
    • 73

    Chance Rain

    • 39
    • 58

    Chance Rain

    • 36
    • 46

    Rain Likely

    • 36
    • 42

    Rain Likely

    • 41
    • 49

    Chance Rain

    • 39
    • 55

    Slight Chance Rain

Today 23 Oct Grant

Partly sunny with a slight chance of Thunderstorms. Rain likely late this Morning, then a chance of rain this afternoon. Highs in the mid 70s. South Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 60 percent.

Tonight 23 Oct Grant

Mostly cloudy in the Evening, then partly cloudy with a slight chance of rain after midnight. Breezy with Lows in the mid 50s. South Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of rain 20 percent.

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Summit Lake Temperature Statistics

October Temperature

Sisseton, Sisseton Municipal Airport (26.1 miles)

  • Lowest 19 October, 2026

    32 °F

  • Average October

    54 °F

  • Highest 10 October, 2026

    90 °F

Climate (2021–2026)

Sisseton, Sisseton Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    46.4 °F

  • Average High 2021–2026

    56.9 °F
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