Crystal Lake Weather Forecast

    • 30
    • 47

    Mostly Sunny

    • 32
    • 55

    Mostly Sunny

    • 35
    • 56

    Mostly Sunny

    • 17
    • 43

    Sunny

    • 24
    • 40

    Mostly Sunny

    • 30
    • 51

    Partly Sunny

Today 11 Dec Oconee Mountains

Sunny. Highs in the upper 40s. West Winds around 5 Mph.

Tonight 11 Dec Oconee Mountains

Mostly clear. Lows around 30. West Winds around 5 Mph.

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Crystal Lake Temperature Statistics

December Temperature

Clemson, Clemson-Oconee County Airport (18 miles)

  • Lowest 4 December, 2025

    32 °F

  • Average December

    41 °F

  • Highest 2 December, 2025

    53.1 °F

Climate (2020–Present)

Clemson, Clemson-Oconee County Airport (18 miles)

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  • Average Low 2020–2025

    53.5 °F

  • Average 2020–2025

    62.5 °F

  • Average High 2020–2025

    72.1 °F
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