Flat Lake Weather Forecast

    • 13
    • 20

    Chance Snow

    • 21
    • 27

    Mostly Cloudy

    • 22
    • 40

    Partly Sunny

    • 15
    • 29

    Mostly Cloudy

    • 18
    • 30

    Mostly Cloudy

    • 25
    • 33

    Partly Sunny

Today 3 Feb Marshall

Mostly cloudy with a chance of Flurries. Highs in the lower 20s. Southeast Winds around 5 Mph, becoming southwest around 5 Mph this afternoon.

Tonight 3 Feb Marshall

Mostly cloudy with a 40 percent chance of snow. Little or no snow accumulation. Not as cold with Lows around 15. Southwest Winds 5 to 10 Mph, becoming northwest 10 to 15 Mph with Gusts up to 25 Mph after midnight.

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  • Temperature Real-Time

Flat Lake Temperature Statistics

February Temperature

Sisseton, Sisseton Municipal Airport (21.7 miles)

  • Lowest 1 February, 2026

    16 °F

  • Average February

    –

  • Highest 1 February, 2026

    35.1 °F

Climate (2021–Present)

Sisseton, Sisseton Municipal Airport (21.7 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    57.1 °F
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