Sandy Run Stream Valley Park Weather Forecast

    • 51
    • 72

    Becoming Sunny

    • 63
    • 84

    Mostly Sunny

    • 65
    • 90

    Partly Sunny

    • 68
    • 93

    Mostly Sunny

    • 71
    • 94

    Mostly Sunny

    • 66
    • 92

    Chance Thunderstorms

Today 15 May Fairfax

Mostly sunny. Highs in the lower 70s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 15 May Fairfax

Partly cloudy in the Evening, then clearing. Lows in the lower 50s. West Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Real-Time

Sandy Run Stream Valley Park Temperature Statistics

May Temperature

Fort Belvoir (8.1 miles)

  • Lowest 1 May, 2026

    37.4 °F

  • Average May

    59.6 °F

  • Highest 5 May, 2026

    85.3 °F

Climate (2021–Present)

Fort Belvoir (8.1 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68.3 °F
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