Holly Knoll Park Weather Forecast

    • 42
    • 64

    Sunny

    • 46
    • 70

    Chance Rain Showers

    • 42
    • 61

    Mostly Sunny

    • 39
    • 60

    Mostly Sunny

    • 40
    • 60

    Partly Sunny

    • 46
    • 60

    Slight Chance Rain Showers

Today 20 Oct Eastern Loudoun

Sunny. A slight chance of Showers this morning. Highs in the mid 60s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 20 Oct Eastern Loudoun

Clear. Lows around 40. West Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming southwest after midnight.

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Holly Knoll Park Temperature Statistics

October Temperature

Washington/Dulles International Airport, DC (6.8 miles)

  • Lowest 17 October, 2025

    34 °F

  • Average October

    60.9 °F

  • Highest 6 October, 2025

    82.9 °F

Climate (2020–Present)

Washington/Dulles International Airport, DC (6.8 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    68.6 °F
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