Mundt Lake Weather Forecast

    • 51
    • 62

    Rain Showers

    • 50
    • 67

    Chance Rain Showers

    • 52
    • 74

    Partly Sunny

    • 53
    • 79

    Partly Sunny

    • 49
    • 73

    Partly Sunny

    • 49
    • 75

    Mostly Sunny

Today 18 Sep Sully

Patchy fog in the morning. A slight chance of Thunderstorms. Showers. Highs in the lower 60s. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 80 percent.

Tonight 18 Sep Sully

Mostly cloudy with a 40 percent chance of Showers. Lows in the lower 50s. Northwest Winds 10 to 15 Mph.

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Mundt Lake Temperature Statistics

September Temperature

Pierre, Pierre Regional Airport (34.8 miles)

  • Lowest 6 September, 2025

    39 °F

  • Average September

    66.3 °F

  • Highest 12 September, 2025

    90 °F

Climate (2020–Present)

Pierre, Pierre Regional Airport (34.8 miles)

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  • Average Low 2020–2025

    36.8 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    61.2 °F
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