Summit Lake Weather Forecast

    • 15
    • 26

    Decreasing Clouds

    • 31
    • 35

    Mostly Cloudy

    • 28
    • 48

    Chance Rain

    • 25
    • 41

    Partly Sunny

    • 36
    • 49

    Slight Chance Rain

    • 45
    • 55

    Chance Rain

Today 6 Apr Grant

Partly sunny. Much cooler with Highs around 30. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 6 Apr Grant

Mostly cloudy. Cold with Lows in the lower 20s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summit Lake Temperature Statistics

April Temperature

Sisseton, Sisseton Municipal Airport (26.1 miles)

  • Lowest 1 April, 2026

    28 °F

  • Average April

    31.1 °F

  • Highest 1 April, 2026

    37 °F

Climate (2021–Present)

Sisseton, Sisseton Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    46.6 °F

  • Average High 2021–2026

    57.1 °F
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