Holly Knoll Park Weather Forecast

    • 71
    • 86

    Slight Chance Thunderstorms

    • 70
    • 87

    Chance Rain Showers

    • 67
    • 84

    Rain Showers Likely

    • 67
    • 84

    Partly Sunny

    • 72
    • 85

    Chance Rain Showers

    • 67
    • 87

    Chance Rain Showers

Today 12 Aug Eastern Loudoun

Mostly sunny. Highs in the mid 80s. Northwest Winds 5 to 10 Mph.

Tonight 12 Aug Eastern Loudoun

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows around 70. West Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Holly Knoll Park Temperature Statistics

August Temperature

Washington/Dulles International Airport, DC (6.8 miles)

  • Lowest 1 August, 2026

    65.6 °F

  • Average August

    79.8 °F

  • Highest 6 August, 2026

    91.7 °F

Climate (2021–2026)

Washington/Dulles International Airport, DC (6.8 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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