Sugarland Run Stream Valley Park Weather Forecast

    • 66
    • 85

    Becoming Sunny

    • 70
    • 88

    Mostly Sunny

    • 66
    • 85

    Rain Showers Likely

    • 67
    • 83

    Chance Rain Showers

    • 66
    • 83

    Chance Thunderstorms

    • 64
    • 83

    Chance Thunderstorms

Today 18 Aug Eastern Loudoun

Mostly sunny. Highs in the mid 80s. Northwest Winds around 5 Mph.

Tonight 18 Aug Eastern Loudoun

Mostly clear. Lows in the mid 60s. Northwest Winds around 5 Mph.

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Sugarland Run Stream Valley Park Temperature Statistics

August Temperature

Washington/Dulles International Airport, DC (5.6 miles)

  • Lowest 1 August, 2026

    65.6 °F

  • Average August

    79.6 °F

  • Highest 10 August, 2026

    92.6 °F

Climate (2021–2026)

Washington/Dulles International Airport, DC (5.6 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    68.6 °F
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