Belle Fourche Weather Forecast

    • 28
    • 43

    Decreasing Clouds

    • 29
    • 58

    Partly Sunny

    • 37
    • 53

    Mostly Cloudy

    • 37
    • 59

    Breezy

    • 28
    • 51

    Mostly Cloudy

    • 29
    • 52

    Partly Sunny

Today 21 Dec Butte

Partly cloudy in the Morning, then mostly cloudy with a chance of Sprinkles in the afternoon. Highs around 40. South Winds 5 to 10 Mph. Gusts up to 20 Mph in the afternoon.

Tonight 21 Dec Butte

Partly cloudy. Lows in the upper 20s. East Winds 10 to 15 Mph, becoming northwest 5 to 10 Mph after midnight.

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Belle Fourche Temperature Statistics

December Temperature

Spearfish / Clyde Ice (13 miles)

  • Lowest 13 December, 2025

    5 °F

  • Average December

    33.8 °F

  • Highest 14 December, 2025

    60.8 °F

Climate (2020–Present)

Spearfish / Clyde Ice (13 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    47.6 °F

  • Average High 2020–2025

    58.3 °F
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