Fort Pierre National Grassland Weather Forecast

    • -2
    • 10

    Slight Chance Snow

    • 27
    • 36

    Chance Rain

    • 19
    • 38

    Mostly Cloudy

    • 24
    • 37

    Mostly Cloudy

    • 21
    • 38

    Mostly Cloudy

    • 22
    • 33

    Mostly Cloudy

Today 30 Jan Lyman

Mostly cloudy this Morning, then clearing. Colder with Highs around 11. Northeast Winds 10 to 15 Mph.

Tonight 30 Jan Lyman

Mostly clear in the Evening, then becoming partly cloudy. Cold with Lows around 4 below. Southeast Winds 10 to 15 Mph. Wind chill Values as low as 23 below.

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Fort Pierre National Grassland Temperature Statistics

January Temperature

Pierre, Pierre Regional Airport (15.5 miles)

  • Lowest 23 January, 2026

    -16.3 °F

  • Average January

    22.8 °F

  • Highest 12 January, 2026

    60.7 °F

Climate (2021–Present)

Pierre, Pierre Regional Airport (15.5 miles)

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  • Average Low 2021–2026

    36.8 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    61.2 °F
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