Sylvan Lake Weather Forecast

    • 37
    • 45

    Decreasing Clouds

    • 31
    • 59

    Mostly Sunny

    • 40
    • 49

    Partly Sunny

    • 30
    • 50

    Partly Sunny

    • 30
    • 46

    Slight Chance Snow

    • 24
    • 39

    Partly Sunny

Today 3 Nov Central Black Hills

Mostly cloudy. Cooler with Highs in the upper 40s. South Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 3 Nov Central Black Hills

Partly cloudy in the Evening, then clearing. Lows in the lower 40s. West Winds 5 to 10 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sylvan Lake Temperature Statistics

November Temperature

Custer, Custer County Airport (8.1 miles)

  • Lowest 1 November, 2025

    19.9 °F

  • Average November

    39.2 °F

  • Highest 1 November, 2025

    55.9 °F

Climate (2020–Present)

Custer, Custer County Airport (8.1 miles)

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  • Average Low 2020–2025

    33.2 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    56.2 °F
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