Summit Lake Weather Forecast

    • 49
    • 64

    Chance Rain Showers

    • 58
    • 68

    Partly Sunny

    • 59
    • 72

    Chance Thunderstorms

    • 59
    • 72

    Slight Chance Rain Showers

    • 64
    • 76

    Chance Thunderstorms

    • 65
    • 82

    Chance Thunderstorms

    • 64
    • 83

    Chance Rain Showers

Today 16 Jul Grant

Cloudy with a 30 percent chance of Showers. Patchy smoke. Much cooler. Near steady temperature in the lower 60s. North Winds 10 to 15 Mph.

Tonight 16 Jul Grant

Mostly cloudy this Evening, then becoming partly cloudy. Patchy fog after midnight. Lows around 50. North Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summit Lake Temperature Statistics

July Temperature

Sisseton, Sisseton Municipal Airport (26.1 miles)

  • Lowest 9 July, 2025

    55.7 °F

  • Average July

    73.4 °F

  • Highest 4 July, 2025

    92.6 °F

Climate (2020–Present)

Sisseton, Sisseton Municipal Airport (26.1 miles)

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  • Average Low 2020–2025

    36 °F

  • Average 2020–2025

    46.6 °F

  • Average High 2020–2025

    57.1 °F
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