Lost Lake Weather Forecast

    • 41
    • 57

    Mostly Sunny

    • 36
    • 55

    Mostly Cloudy

    • 29
    • 46

    Mostly Sunny

    • 31
    • 51

    Mostly Sunny

    • 33
    • 52

    Mostly Sunny

    • 37
    • 55

    Mostly Sunny

Today 19 Oct Marshall

Sunny. Highs in the upper 50s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 19 Oct Marshall

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers after midnight. Lows in the lower 40s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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Lost Lake Temperature Statistics

October Temperature

Sisseton, Sisseton Municipal Airport (23 miles)

  • Lowest 8 October, 2025

    30 °F

  • Average October

    57.9 °F

  • Highest 3 October, 2025

    90 °F

Climate (2020–Present)

Sisseton, Sisseton Municipal Airport (23 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    57.2 °F
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