Spearfish Weather Forecast

    • 53
    • 70

    Slight Chance Rain Showers

    • 42
    • 73

    Areas Smoke

    • 39
    • 61

    Mostly Sunny

    • 44
    • 65

    Mostly Sunny

    • 55
    • 76

    Mostly Cloudy

    • 56
    • 78

    Partly Sunny

    • 58
    • 78

    Partly Sunny

Today 3 Sep Northern Foothills

Partly cloudy. Areas of smoke. Near steady temperature in the upper 60s. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 3 Sep Northern Foothills

Areas of smoke this evening. Partly cloudy. Lows in the lower 50s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Spearfish Temperature Statistics

September Temperature

Spearfish / Clyde Ice (3.7 miles)

  • Lowest 1 September, 2025

    46.4 °F

  • Average September

    65.4 °F

  • Highest 1 September, 2025

    82.4 °F

Climate (2020–Present)

Spearfish / Clyde Ice (3.7 miles)

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  • Average Low 2020–2025

    36 °F

  • Average 2020–2025

    47.4 °F

  • Average High 2020–2025

    58.1 °F
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