Sully Lake Weather Forecast

    • 41
    • 72

    Mostly Cloudy

    • 24
    • 60

    Rain/Snow Likely

    • 19
    • 40

    Breezy

    • 30
    • 51

    Mostly Sunny

    • 28
    • 65

    Partly Sunny

    • 21
    • 43

    Chance Snow

Today 13 Mar Sully

Partly sunny. Highs in the lower 70s. South Winds 5 to 15 Mph shifting to the southwest 15 to 20 Mph in the afternoon.

Tonight 13 Mar Sully

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 40s. Southeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sully Lake Temperature Statistics

March Temperature

Pierre, Pierre Regional Airport (23.6 miles)

  • Lowest 7 March, 2025

    15.9 °F

  • Average March

    37.5 °F

  • Highest 10 March, 2025

    73.9 °F

Climate (2020–Present)

Pierre, Pierre Regional Airport (23.6 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    48.4 °F

  • Average High 2020–2025

    61 °F
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