Fort Pierre National Grassland Weather Forecast

    • 36
    • 55

    Chance Snow

    • 40
    • 66

    Partly Sunny

    • 44
    • 70

    Partly Sunny

    • 46
    • 75

    Partly Sunny

    • 36
    • 80

    Partly Sunny

    • 28
    • 49

    Mostly Cloudy

    • 32
    • 55

    Mostly Cloudy

Today 17 Mar Lyman

Partly sunny. Not as cool with Highs in the lower 50s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 17 Mar Lyman

Mostly cloudy this Evening, then becoming partly cloudy. Not as cold with Lows in the mid 30s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

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Fort Pierre National Grassland Temperature Statistics

March Temperature

Pierre, Pierre Regional Airport (15.5 miles)

  • Lowest 15 March, 2026

    1 °F

  • Average March

    35.5 °F

  • Highest 5 March, 2026

    75.7 °F

Climate (2021–Present)

Pierre, Pierre Regional Airport (15.5 miles)

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  • Average Low 2021–2026

    36.9 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    61.4 °F
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