South Run Stream Valley Park Weather Forecast

    • 34
    • 56

    Mostly Sunny

    • 41
    • 59

    Mostly Sunny

    • 56
    • 66

    Slight Chance Rain Showers

    • 59
    • 78

    Mostly Cloudy

    • 61
    • 78

    Chance Rain Showers

    • 45
    • 79

    Chance Rain Showers

Today 26 Mar Fairfax

Mostly sunny. Highs in the mid 50s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph, increasing to around 20 Mph with Gusts up to 35 Mph in the afternoon.

Tonight 26 Mar Fairfax

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

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South Run Stream Valley Park Temperature Statistics

March Temperature

Fort Belvoir (3.1 miles)

  • Lowest 3 March, 2025

    21.6 °F

  • Average March

    49.7 °F

  • Highest 20 March, 2025

    76.5 °F

Climate (2020–Present)

Fort Belvoir (3.1 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    68.2 °F
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