Catharpin Park Weather Forecast

    • 69
    • 94

    Thunderstorms

    • 65
    • 78

    Chance Rain Showers

    • 66
    • 77

    Chance Rain Showers

    • 65
    • 82

    Chance Rain Showers

    • 64
    • 83

    Slight Chance Rain Showers

    • 65
    • 85

    Partly Sunny

    • 68
    • 85

    Chance Rain Showers

Today 17 Aug Northwest Prince William

Partly sunny with scattered Showers with isolated Thunderstorms. Highs in the lower 90s. West Winds around 5 Mph. Chance of rain 50 percent.

Tonight 17 Aug Northwest Prince William

Widespread Showers and Thunderstorms this evening. Some Thunderstorms may produce gusty Winds and heavy rainfall this evening. Lows in the upper 60s. Northwest Winds 5 to 10 Mph. Chance of rain near 100 percent.

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Catharpin Park Temperature Statistics

August Temperature

Washington/Dulles International Airport, DC (8.1 miles)

  • Lowest 10 August, 2025

    54.6 °F

  • Average August

    74.3 °F

  • Highest 14 August, 2025

    93 °F

Climate (2020–Present)

Washington/Dulles International Airport, DC (8.1 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    68.5 °F
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