Custer Weather Forecast

    • 44
    • 58

    Rain Likely

    • 41
    • 62

    Chance Rain

    • 45
    • 68

    Mostly Sunny

    • 49
    • 73

    Mostly Sunny

    • 48
    • 77

    Mostly Sunny

    • 44
    • 69

    Mostly Sunny

    • 46
    • 73

    Mostly Sunny

Today 17 Sep Central Black Hills

Showers and a slight chance of Thunderstorms. Near steady temperature in the mid 50s. North Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 17 Sep Central Black Hills

Mostly cloudy. Showers with a slight chance of Thunderstorms in the Evening, then Showers likely after midnight. Lows in the mid 40s. North Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 80 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Custer Temperature Statistics

September Temperature

Custer, Custer County Airport (2.5 miles)

  • Lowest 6 September, 2025

    32 °F

  • Average September

    60.6 °F

  • Highest 11 September, 2025

    82.9 °F

Climate (2020–Present)

Custer, Custer County Airport (2.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    56.2 °F
Get WillyWeather+ to remove ads