Hermosa Weather Forecast

    • 37
    • 54

    Mostly Cloudy

    • 31
    • 64

    Mostly Cloudy

    • 41
    • 56

    Mostly Cloudy

    • 44
    • 65

    Partly Sunny

    • 34
    • 61

    Partly Sunny

    • 28
    • 56

    Mostly Sunny

Today 21 Dec Hermosa Foothills

Partly cloudy. A chance of Sprinkles in the afternoon. Highs in the lower 50s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the afternoon.

Tonight 21 Dec Hermosa Foothills

Partly cloudy and breezy. Not as cool with Lows in the upper 30s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph, increasing to west 20 to 30 Mph with Gusts up to 45 Mph after midnight.

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Hermosa Temperature Statistics

December Temperature

Rapid City, Rapid City Regional Airport (15.5 miles)

  • Lowest 1 December, 2025

    1.9 °F

  • Average December

    31.6 °F

  • Highest 17 December, 2025

    66 °F

Climate (2020–Present)

Rapid City, Rapid City Regional Airport (15.5 miles)

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  • Average Low 2020–2025

    35.5 °F

  • Average 2020–2025

    48.9 °F

  • Average High 2020–2025

    62.4 °F
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