Mason Neck State Park Weather Forecast

    • 43
    • 55

    Rain

    • 33
    • 49

    Rain Showers Likely

    • 30
    • 44

    Mostly Sunny

    • 30
    • 42

    Partly Sunny

    • 31
    • 46

    Partly Sunny

    • 34
    • 50

    Partly Sunny

Today 4 Dec Fairfax

Cloudy. A slight chance of rain Showers in the Morning, then rain likely in the afternoon. Highs in the mid 50s. South Winds 5 to 10 Mph. Chance of rain 60 percent.

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Mason Neck State Park Temperature Statistics

December Temperature

Fort Belvoir (4.3 miles)

  • Lowest 1 December, 2020

    40.5 °F

  • Average December

    43.3 °F

  • Highest 1 December, 2020

    48.4 °F

Climate (2010–Present)

Fort Belvoir (4.3 miles)

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  • Average Low 2010–Present

    49.4 °F

  • Average 2010–Present

    58.7 °F

  • Average High 2010–Present

    68.6 °F
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