Mount Williams Weather Forecast

    • 20
    • 44

    Chance Rain/Sleet

    • 16
    • 23

    Partly Sunny

    • 19
    • 29

    Mostly Cloudy

    • 27
    • 39

    Mostly Cloudy

    • 31
    • 51

    Mostly Cloudy

    • 34
    • 52

    Chance Rain

    • 28
    • 45

    Partly Sunny

Today 13 Dec Frederick

Mostly cloudy with a 20 percent chance of rain. Highs in the mid 40s. Northwest Winds around 5 Mph.

Tonight 13 Dec Frederick

A chance of rain this evening. Cloudy with a chance of snow. Snow accumulation up to 1 inch possible. Lows around 20. Northwest Winds around 5 Mph, increasing to 10 to 15 Mph with Gusts up to 25 Mph after midnight. Chance of precipitation 50 percent.

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Mount Williams Temperature Statistics

December Temperature

Winchester Regional (9.3 miles)

  • Lowest 9 December, 2025

    19.4 °F

  • Average December

    32.5 °F

  • Highest 10 December, 2025

    46.4 °F

Climate (2020–Present)

Winchester Regional (9.3 miles)

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  • Average Low 2020–2025

    44.4 °F

  • Average 2020–2025

    54.3 °F

  • Average High 2020–2025

    64.2 °F
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