Sandy Run Regional Park Weather Forecast

    • 17
    • 36

    Chance Snow

    • 29
    • 36

    Partly Sunny

    • 32
    • 48

    Mostly Cloudy

    • 26
    • 42

    Mostly Cloudy

    • 23
    • 42

    Chance Rain/Snow

    • 19
    • 35

    Partly Sunny

Today 8 Dec Fairfax

Cloudy with a 20 percent chance of snow. Highs in the mid 30s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 8 Dec Fairfax

Mostly cloudy in the Evening, then clearing. Lows around 18. North Winds around 5 Mph.

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Sandy Run Regional Park Temperature Statistics

December Temperature

Fort Belvoir (6.2 miles)

  • Lowest 4 December, 2025

    25.2 °F

  • Average December

    35.3 °F

  • Highest 4 December, 2025

    47.5 °F

Climate (2020–Present)

Fort Belvoir (6.2 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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