South Run Park Weather Forecast

    • 30
    • 50

    Rain/Snow

    • 41
    • 54

    Partly Sunny

    • 40
    • 57

    Mostly Cloudy

    • 54
    • 62

    Mostly Cloudy

    • 30
    • 70

    Rain Showers

    • 25
    • 41

    Mostly Sunny

Today 12 Mar Fairfax

Rain and snow. Little or no snow accumulation. Much cooler with Highs in the upper 40s. Northwest Winds around 15 Mph with Gusts up to 30 Mph. Chance of precipitation near 100 percent.

Tonight 12 Mar Fairfax

Mostly clear. Lows in the lower 30s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Run Park Temperature Statistics

March Temperature

Fort Belvoir (5 miles)

  • Lowest 2 March, 2026

    31.1 °F

  • Average March

    50.8 °F

  • Highest 10 March, 2026

    85.3 °F

Climate (2021–Present)

Fort Belvoir (5 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    68.2 °F
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