South Run Park Weather Forecast

    • 49
    • 61

    Increasing Clouds

    • 59
    • 69

    Partly Sunny

    • 63
    • 81

    Partly Sunny

    • 57
    • 84

    Rain Showers Likely

    • 52
    • 68

    Rain Showers Likely

    • 58
    • 71

    Chance Rain Showers

Today 29 Mar Fairfax

Sunny. Highs in the lower 60s. South Winds around 15 Mph with Gusts up to 25 Mph.

Tonight 29 Mar Fairfax

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 40s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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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

    52.6 °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

    58 °F

  • Average High 2021–2026

    68.2 °F
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