Dewey Weather Forecast

    • 30
    • 58

    Becoming Sunny

    • 30
    • 63

    Mostly Sunny

    • 35
    • 64

    Mostly Sunny

    • 34
    • 58

    Partly Sunny

    • 33
    • 58

    Partly Sunny

    • 35
    • 60

    Mostly Sunny

Today 6 Nov Southern Black Hills

Mostly sunny. Highs in the mid 50s. South Winds 5 to 10 Mph.

Tonight 6 Nov Southern Black Hills

Clear. Lows in the mid 30s. Southeast Winds around 5 Mph, becoming northwest with Gusts up to 20 Mph after midnight.

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Dewey Temperature Statistics

November Temperature

Custer, Custer County Airport (24.9 miles)

  • Lowest 3 November, 2026

    30 °F

  • Average November

    43.2 °F

  • Highest 1 November, 2026

    54.6 °F

Climate (2021–2026)

Custer, Custer County Airport (24.9 miles)

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  • Average Low 2021–2026

    33.7 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    57 °F
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