Mason Neck State Park Weather Forecast

    • 35
    • 59

    Mostly Sunny

    • 50
    • 59

    Chance Rain Showers

    • 38
    • 67

    Rain

    • 27
    • 47

    Mostly Sunny

    • 29
    • 47

    Mostly Sunny

    • 28
    • 49

    Mostly Sunny

    • 29
    • 50

    Mostly Sunny

Today 8 Dec Fairfax

Sunny. Highs in the upper 50s. Southeast Winds around 5 Mph.

Tonight 8 Dec Fairfax

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 30s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mason Neck State Park Temperature Statistics

December Temperature

Fort Belvoir (4.3 miles)

  • Lowest 1 December, 2023

    30.2 °F

  • Average December

    46.3 °F

  • Highest 3 December, 2023

    57.6 °F

Climate (2018–Present)

Fort Belvoir (4.3 miles)

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  • Average Low 2018–2023

    48.3 °F

  • Average 2018–2023

    58.3 °F

  • Average High 2018–2023

    68.4 °F
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