Big Rock Park Weather Forecast

    • 28
    • 33

    Rain/Snow

    • 28
    • 41

    Snow Showers

    • 27
    • 41

    Rain/Snow Likely

    • 29
    • 51

    Chance Rain Showers

    • 29
    • 52

    Slight Chance Rain/Snow

    • 36
    • 60

    Mostly Sunny

    • 38
    • 64

    Partly Sunny

Today 26 Apr Central Black Hills

Cloudy with snow Showers and rain Showers likely. Near steady temperature in the lower 30s. East Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of precipitation 70 percent.

Tonight 26 Apr Central Black Hills

A slight chance of rain Showers this evening. Snow Showers. Areas of fog. Snow accumulation around an inch. Lows in the upper 20s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of precipitation 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Rock Park Temperature Statistics

April Temperature

Custer, Custer County Airport (1.9 miles)

  • Lowest 7 April, 2026

    20.6 °F

  • Average April

    40.2 °F

  • Highest 11 April, 2026

    72.6 °F

Climate (2021–Present)

Custer, Custer County Airport (1.9 miles)

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  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    56.9 °F
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