Sisseton Weather Forecast

    • 61
    • 83

    Increasing Clouds

    • 60
    • 75

    Chance Thunderstorms

    • 58
    • 71

    Rain Showers Likely

    • 57
    • 69

    Chance Thunderstorms

    • 56
    • 70

    Chance Rain Showers

    • 57
    • 74

    Partly Sunny

Today 16 Sep Roberts

Mostly sunny. Highs in the lower 80s. Southwest Winds around 5 Mph, becoming north around 5 Mph in the afternoon.

Tonight 16 Sep Roberts

Mostly clear. Near steady temperature in the mid 60s. South Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Sisseton Temperature Statistics

September Temperature

Sisseton, Sisseton Municipal Airport (2.5 miles)

  • Lowest 7 September, 2025

    33.1 °F

  • Average September

    60.3 °F

  • Highest 2 September, 2025

    82 °F

Climate (2020–Present)

Sisseton, Sisseton Municipal Airport (2.5 miles)

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  • Average Low 2020–2025

    36.1 °F

  • Average 2020–2025

    46.6 °F

  • Average High 2020–2025

    57.1 °F
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