Big Rock Park Weather Forecast

    • 38
    • 55

    Increasing Clouds

    • 34
    • 57

    Sunny

    • 38
    • 60

    Partly Sunny

    • 41
    • 57

    Slight Chance Rain

    • 40
    • 61

    Mostly Cloudy

    • 36
    • 57

    Rain Likely

Today 27 Oct Central Black Hills

Mostly sunny. Not as cool with Highs in the mid 50s. West Winds 10 to 15 Mph with Gusts up to 40 Mph.

Tonight 27 Oct Central Black Hills

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 30s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Rock Park Temperature Statistics

October Temperature

Custer, Custer County Airport (1.9 miles)

  • Lowest 16 October, 2026

    26.7 °F

  • Average October

    51.8 °F

  • Highest 5 October, 2026

    81.6 °F

Climate (2021–2026)

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

    57 °F
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