Minnewasta Lake Weather Forecast

    • 66
    • 80

    Rain Showers Likely

    • 66
    • 81

    Chance Rain Showers

    • 67
    • 83

    Slight Chance Thunderstorms

    • 64
    • 79

    Partly Sunny

    • 63
    • 79

    Chance Rain Showers

    • 66
    • 81

    Slight Chance Thunderstorms

    • 65
    • 81

    Partly Sunny

Today 28 Aug Day

Partly sunny with a 20 percent chance of Showers. Near steady temperature in the upper 70s. South Winds 10 to 15 Mph.

Tonight 28 Aug Day

Mostly cloudy with a chance of Thunderstorms. Showers likely after midnight. Lows in the mid 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Minnewasta Lake Temperature Statistics

August Temperature

Sisseton, Sisseton Municipal Airport (26.1 miles)

  • Lowest 23 August, 2026

    48 °F

  • Average August

    69.5 °F

  • Highest 20 August, 2026

    86 °F

Climate (2021–2026)

Sisseton, Sisseton Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    46.4 °F

  • Average High 2021–2026

    57 °F
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