Mystic Weather Forecast

    • 2
    • 20

    Partly Sunny

    • 24
    • 37

    Chance Rain/Snow

    • 40
    • 59

    Partly Sunny

    • 40
    • 68

    Partly Sunny

    • 43
    • 72

    Partly Sunny

    • 40
    • 71

    Partly Sunny

Today 15 Mar Northern Black Hills

Mostly cloudy with snow this Morning, then partly cloudy with a slight chance of snow this afternoon. Additional snow accumulation around an inch. Much cooler with Highs around 15. Northwest Winds 10 to 15 Mph. Gusts up to 40 Mph, decreasing to 30 Mph this afternoon. Chance of snow 80 percent. Wind chill Values around 15 below this morning.

Tonight 15 Mar Northern Black Hills

Mostly clear. Lows zero to 5 above. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values around 10 below.

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Mystic Temperature Statistics

March Temperature

Custer, Custer County Airport (23.6 miles)

  • Lowest 11 March, 2026

    16 °F

  • Average March

    37.4 °F

  • Highest 8 March, 2026

    62.1 °F

Climate (2021–Present)

Custer, Custer County Airport (23.6 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.2 °F

  • Average High 2021–2026

    56.7 °F
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