Fountainhead Regional Park Weather Forecast

    • 26
    • 41

    Increasing Clouds

    • 26
    • 43

    Mostly Cloudy

    • 15
    • 34

    Partly Sunny

    • 30
    • 37

    Mostly Cloudy

    • 34
    • 49

    Slight Chance Rain

    • 32
    • 47

    Chance Rain/Snow

    • 22
    • 43

    Slight Chance Rain/Snow

Today 6 Dec Fairfax

Partly sunny. Highs in the lower 40s. Southwest Winds around 5 Mph.

Tonight 6 Dec Fairfax

Partly cloudy. Lows in the upper 20s. Northwest Winds around 5 Mph.

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  • Temperature Real-Time

Fountainhead Regional Park Temperature Statistics

December Temperature

Fort Belvoir (7.5 miles)

  • Lowest 4 December, 2025

    25.2 °F

  • Average December

    36.5 °F

  • Highest 4 December, 2025

    47.5 °F

Climate (2020–Present)

Fort Belvoir (7.5 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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