Sisseton Weather Forecast

    • 59
    • 79

    Chance Rain Showers

    • 60
    • 79

    Chance Rain Showers

    • 61
    • 81

    Chance Thunderstorms

    • 56
    • 78

    Partly Sunny

    • 56
    • 73

    Mostly Cloudy

    • 57
    • 73

    Chance Rain Showers

Today 9 Aug Roberts

Partly sunny. Highs in the upper 70s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 9 Aug Roberts

Mostly cloudy. Lows in the upper 50s. Northeast Winds around 5 Mph, becoming east around 5 Mph after midnight.

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Sisseton Temperature Statistics

August Temperature

Sisseton, Sisseton Municipal Airport (2.5 miles)

  • Lowest 5 August, 2026

    52 °F

  • Average August

    69.9 °F

  • Highest 3 August, 2026

    84.9 °F

Climate (2021–2026)

Sisseton, Sisseton Municipal Airport (2.5 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    57 °F
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