Castle Rock Weather Forecast

    • 33
    • 48

    Breezy

    • 22
    • 44

    Windy

    • 18
    • 29

    Windy

    • 24
    • 38

    Breezy

    • 16
    • 43

    Breezy

    • 18
    • 35

    Partly Sunny

Today 14 Jan Butte

Becoming partly cloudy. Highs in the upper 40s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 14 Jan Butte

Mostly clear and breezy. Lows in the lower 30s. West Winds 5 to 10 Mph with Gusts up to 20 Mph, increasing to 15 to 25 Mph with Gusts up to 40 Mph after midnight.

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  • Temperature Real-Time

Castle Rock Temperature Statistics

January Temperature

Spearfish / Clyde Ice (37.9 miles)

  • Lowest 2 January, 2026

    23 °F

  • Average January

    40.5 °F

  • Highest 4 January, 2026

    59 °F

Climate (2021–Present)

Spearfish / Clyde Ice (37.9 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    58.4 °F
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