South Run Park Weather Forecast

    • 51
    • 82

    Chance Rain

    • 33
    • 65

    Rain

    • 33
    • 48

    Mostly Sunny

    • 45
    • 59

    Partly Sunny

    • 53
    • 66

    Chance Rain

    • 56
    • 72

    Chance Rain

Today 26 Mar Fairfax

Mostly sunny. Warmer with Highs in the lower 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 26 Mar Fairfax

Partly cloudy in the Evening, then mostly cloudy with a chance of rain after midnight. Lows in the lower 50s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 40 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

    52.1 °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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