Spearfish Weather Forecast

    • 39
    • 71

    Rain Showers Likely

    • 33
    • 47

    Chance Rain Showers

    • 37
    • 56

    Mostly Sunny

    • 37
    • 57

    Partly Sunny

    • 40
    • 59

    Mostly Sunny

    • 44
    • 62

    Mostly Sunny

Today 19 Oct Northern Foothills

Mostly sunny. Highs around 70. East Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 19 Oct Northern Foothills

Mostly cloudy with Showers likely this Evening, then partly cloudy with a chance of Showers. Breezy with Lows around 40. West Winds 20 to 30 Mph with Gusts up to 40 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Spearfish Temperature Statistics

October Temperature

Spearfish / Clyde Ice (3.7 miles)

  • Lowest 13 October, 2025

    26.6 °F

  • Average October

    54.5 °F

  • Highest 3 October, 2025

    89.6 °F

Climate (2020–Present)

Spearfish / Clyde Ice (3.7 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    58.2 °F
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