Summit Lake Weather Forecast

    • 21
    • 25

    Partly Sunny

    • 32
    • 41

    Mostly Sunny

    • 11
    • 43

    Chance Snow

    • 3
    • 15

    Slight Chance Snow

    • 11
    • 18

    Slight Chance Snow

    • 22
    • 32

    Partly Sunny

Today 25 Feb Grant

Partly sunny. Highs in the upper 20s. Northwest Winds around 5 Mph, becoming southwest this afternoon.

Tonight 25 Feb Grant

Partly cloudy. Not as cold with Lows around 20. South Winds 5 to 10 Mph, becoming southwest 10 to 15 Mph after midnight.

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  • Temperature Real-Time

Summit Lake Temperature Statistics

February Temperature

Sisseton, Sisseton Municipal Airport (26.1 miles)

  • Lowest 23 February, 2026

    -4 °F

  • Average February

    26.6 °F

  • Highest 15 February, 2026

    60.1 °F

Climate (2021–Present)

Sisseton, Sisseton Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    46.7 °F

  • Average High 2021–2026

    57.3 °F
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