Fountainhead Regional Park Weather Forecast

    • 32
    • 68

    Mostly Sunny

    • 36
    • 52

    Partly Sunny

    • 48
    • 61

    Mostly Cloudy

    • 56
    • 74

    Chance Rain

    • 32
    • 65

    Chance Rain

    • 32
    • 50

    Mostly Sunny

    • 39
    • 59

    Partly Sunny

Today 23 Mar Fairfax

Sunny, breezy with Highs in the upper 60s. Temperature falling into the lower 50s late. Northwest Winds 20 to 25 Mph with Gusts up to 40 Mph.

Tonight 23 Mar Fairfax

Mostly clear and breezy. Much cooler with Lows in the lower 30s. Northwest Winds 15 to 25 Mph with Gusts up to 40 Mph, Diminishing to 10 to 15 Mph with Gusts up to 30 Mph after midnight.

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  • Temperature Real-Time

Fountainhead Regional Park Temperature Statistics

March Temperature

Fort Belvoir (7.5 miles)

  • Lowest 13 March, 2026

    25.3 °F

  • Average March

    51.5 °F

  • Highest 11 March, 2026

    86.5 °F

Climate (2021–Present)

Fort Belvoir (7.5 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68.2 °F
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