Holly Knoll Park Weather Forecast

    • 16
    • 40

    Mostly Sunny

    • 14
    • 27

    Mostly Sunny

    • 30
    • 39

    Partly Sunny

    • 23
    • 48

    Partly Sunny

    • 13
    • 36

    Chance Snow

    • 9
    • 20

    Chance Snow

Today 19 Jan Eastern Loudoun

Sunny. Highs in the lower 40s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 19 Jan Eastern Loudoun

Mostly clear. Lows around 15. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Holly Knoll Park Temperature Statistics

January Temperature

Washington/Dulles International Airport, DC (6.8 miles)

  • Lowest 16 January, 2026

    21 °F

  • Average January

    37.8 °F

  • Highest 7 January, 2026

    61 °F

Climate (2021–Present)

Washington/Dulles International Airport, DC (6.8 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.4 °F
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