Keystone Weather Forecast

    • 39
    • 54

    Rain Showers Likely

    • 35
    • 54

    Rain Showers Likely

    • 41
    • 59

    Mostly Sunny

    • 49
    • 72

    Mostly Sunny

    • 51
    • 74

    Chance Rain Showers

    • 46
    • 69

    Rain Showers Likely

    • 45
    • 59

    Rain Showers Likely

Today 30 Apr Central Black Hills

Mostly cloudy with rain Showers likely. Near steady temperature in the upper 40s. North Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 60 percent.

Tonight 30 Apr Central Black Hills

Partly cloudy with a slight chance of rain Showers this Evening, then mostly clear. Lows in the mid 30s. Northwest Winds 5 to 10 Mph. Gusts up to 20 Mph this evening. Chance of rain 20 percent.

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Keystone Temperature Statistics

April Temperature

Custer, Custer County Airport (14.9 miles)

  • Lowest 5 April, 2025

    14.8 °F

  • Average April

    40.2 °F

  • Highest 27 April, 2025

    75.7 °F

Climate (2020–Present)

Custer, Custer County Airport (14.9 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    56.1 °F
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