Rapid City Weather Forecast

    • 21
    • 50

    Snow Likely

    • 8
    • 25

    Snow

    • 8
    • 19

    Chance Snow

    • 33
    • 54

    Mostly Sunny

    • 36
    • 57

    Partly Sunny

    • 34
    • 59

    Partly Sunny

Today 11 Dec Rapid City

Partly cloudy. A slight chance of rain this afternoon. Breezy and not as cool with Highs in the upper 50s. West Winds 5 to 10 Mph with Gusts up to 35 Mph, increasing to northwest 15 to 25 Mph with Gusts up to 45 Mph this afternoon. Chance of rain 20 percent.

Tonight 11 Dec Rapid City

Mostly cloudy. A slight chance of rain in the Evening, then a slight chance of snow after midnight. Breezy with Lows around 20. North Winds 15 to 25 Mph. Gusts up to 40 Mph, decreasing to 30 Mph after midnight. Chance of precipitation 20 percent.

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Rapid City Temperature Statistics

December Temperature

Ellsworth Air Force Base (8.1 miles)

  • Lowest 1 December, 2025

    7 °F

  • Average December

    31.5 °F

  • Highest 9 December, 2025

    59.5 °F

Climate (2020–Present)

Ellsworth Air Force Base (8.1 miles)

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  • Average Low 2020–2025

    37.6 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    60.7 °F
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