Big Rock Park Weather Forecast

    • 61
    • 90

    Chance Thunderstorms

    • 60
    • 84

    Chance Thunderstorms

    • 61
    • 87

    Rain Showers Likely

    • 58
    • 86

    Chance Thunderstorms

    • 59
    • 86

    Chance Thunderstorms

    • 60
    • 87

    Mostly Sunny

    • 63
    • 92

    Mostly Sunny

Today 27 Jul Central Black Hills

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the upper 80s to mid 90s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 27 Jul Central Black Hills

Mostly cloudy with a slight chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Lows in the mid 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest around 5 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Rock Park Temperature Statistics

July Temperature

Custer, Custer County Airport (1.9 miles)

  • Lowest 3 July, 2026

    50.6 °F

  • Average July

    71.1 °F

  • Highest 25 July, 2026

    96.1 °F

Climate (2021–2026)

Custer, Custer County Airport (1.9 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.3 °F

  • Average High 2021–2026

    56.9 °F
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