Middle Run Stream Valley Park Weather Forecast

    • 68
    • 87

    Mostly Sunny

    • 68
    • 88

    Partly Sunny

    • 73
    • 91

    Mostly Sunny

    • 77
    • 97

    Hot

    • 76
    • 96

    Chance Thunderstorms

    • 74
    • 92

    Chance Thunderstorms

Today 22 Jul Fairfax

Sunny. Highs in the mid 80s. Northeast Winds around 5 Mph.

Tonight 22 Jul Fairfax

Mostly clear. Lows in the upper 60s. Northeast Winds around 5 Mph.

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Middle Run Stream Valley Park Temperature Statistics

July Temperature

Fort Belvoir (3.7 miles)

  • Lowest 5 July, 2025

    61.7 °F

  • Average July

    80.6 °F

  • Highest 8 July, 2025

    96.3 °F

Climate (2020–Present)

Fort Belvoir (3.7 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    68.4 °F
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