Sandy Run Stream Valley Park Weather Forecast

    • 30
    • 44

    Increasing Clouds

    • 42
    • 46

    Rain Likely

    • 27
    • 63

    Rain Likely

    • 25
    • 35

    Mostly Sunny

    • 27
    • 42

    Mostly Cloudy

    • 20
    • 41

    Partly Sunny

Today 27 Dec Fairfax

Mostly sunny. A slight chance of drizzle in the morning. Highs in the lower 40s. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 27 Dec Fairfax

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 30s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sandy Run Stream Valley Park Temperature Statistics

December Temperature

Fort Belvoir (8.1 miles)

  • Lowest 16 December, 2025

    17.1 °F

  • Average December

    36.1 °F

  • Highest 19 December, 2025

    60.3 °F

Climate (2020–Present)

Fort Belvoir (8.1 miles)

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  • Average Low 2020–2025

    47.7 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    68.2 °F
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