Mount Vernon Weather Forecast

    • 29
    • 34

    Chance Snow

    • 27
    • 44

    Partly Sunny

    • 28
    • 44

    Mostly Cloudy

    • 21
    • 36

    Mostly Sunny

    • 31
    • 39

    Partly Sunny

    • 35
    • 48

    Chance Rain

    • 31
    • 47

    Slight Chance Rain/Snow

Today 5 Dec Charles

Cloudy with a chance of snow with a slight chance of freezing rain. Patchy fog. Highs in the mid 30s. Northeast Winds around 5 Mph. Chance of precipitation 40 percent.

Tonight 5 Dec Charles

Cloudy with freezing drizzle with a slight chance of freezing rain. Patchy fog. Lows in the upper 20s. North Winds around 5 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Vernon Temperature Statistics

December Temperature

Fort Belvoir (3.7 miles)

  • Lowest 3 December, 2025

    26.8 °F

  • Average December

    36.8 °F

  • Highest 1 December, 2025

    47.1 °F

Climate (2020–Present)

Fort Belvoir (3.7 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    68.3 °F
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