Fort Pierre National Grassland Weather Forecast

    • 62
    • 85

    Chance Thunderstorms

    • 61
    • 80

    Thunderstorms Likely

    • 63
    • 85

    Chance Thunderstorms

    • 65
    • 89

    Slight Chance Thunderstorms

    • 65
    • 95

    Slight Chance Thunderstorms

    • 62
    • 90

    Chance Thunderstorms

Today 5 Jul Lyman

Partly sunny. A slight chance of Thunderstorms late this morning. Highs in the mid 80s. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 20 percent.

Tonight 5 Jul Lyman

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. East Winds 10 to 15 Mph.

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Fort Pierre National Grassland Temperature Statistics

July Temperature

Pierre, Pierre Regional Airport (15.5 miles)

  • Lowest 1 July, 2025

    52 °F

  • Average July

    79.1 °F

  • Highest 3 July, 2025

    100.9 °F

Climate (2020–Present)

Pierre, Pierre Regional Airport (15.5 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    61.2 °F
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