South Run Park Weather Forecast

    • 58
    • 77

    Increasing Clouds

    • 61
    • 80

    Partly Sunny

    • 58
    • 80

    Slight Chance Rain Showers

    • 57
    • 76

    Partly Sunny

    • 60
    • 79

    Partly Sunny

    • 59
    • 78

    Partly Sunny

Today 27 Aug Fairfax

Mostly sunny. Highs in the upper 70s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 27 Aug Fairfax

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the upper 50s. West Winds 5 to 10 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Run Park Temperature Statistics

August Temperature

Fort Belvoir (5 miles)

  • Lowest 10 August, 2025

    58.1 °F

  • Average August

    74.3 °F

  • Highest 17 August, 2025

    93.7 °F

Climate (2020–Present)

Fort Belvoir (5 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    68.4 °F
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