Custer Weather Forecast

    • 40
    • 60

    Chance Thunderstorms

    • 37
    • 52

    Chance Rain Showers

    • 35
    • 54

    Chance Rain Showers

    • 39
    • 61

    Rain Showers Likely

    • 41
    • 55

    Rain Showers

    • 39
    • 57

    Rain Showers

    • 37
    • 55

    Rain Showers Likely

Today 14 May Central Black Hills

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs in the upper 50s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 14 May Central Black Hills

Mostly cloudy with a 50 percent chance of rain Showers. Breezy with Lows around 40. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph, increasing to 15 to 25 Mph with Gusts up to 40 Mph after midnight.

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Custer Temperature Statistics

May Temperature

Custer, Custer County Airport (2.5 miles)

  • Lowest 2 May, 2025

    29.8 °F

  • Average May

    54.8 °F

  • Highest 11 May, 2025

    83.6 °F

Climate (2020–Present)

Custer, Custer County Airport (2.5 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    56.2 °F
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