South Run Park Weather Forecast

    • 55
    • 60

    Rain Showers

    • 30
    • 72

    Rain Showers

    • 25
    • 41

    Partly Sunny

    • 31
    • 42

    Mostly Cloudy

    • 37
    • 54

    Mostly Cloudy

    • 43
    • 59

    Chance Rain

Today 15 Mar Fairfax

Mostly cloudy. Highs around 60. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 15 Mar Fairfax

Showers, mainly in the evening. Lows in the mid 50s. Southeast Winds around 15 Mph with Gusts up to 30 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Run Park Temperature Statistics

March Temperature

Fort Belvoir (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 (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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