Manassas National Battlefield Park Weather Forecast

    • 65
    • 79

    Chance Rain Showers

    • 66
    • 77

    Chance Rain Showers

    • 65
    • 82

    Chance Rain Showers

    • 64
    • 83

    Slight Chance Rain Showers

    • 65
    • 85

    Partly Sunny

    • 67
    • 85

    Slight Chance Thunderstorms

Today 18 Aug Northwest Prince William

Mostly cloudy. A chance of Showers in the afternoon. Highs in the upper 70s. North Winds around 10 Mph. Chance of rain 30 percent.

Tonight 18 Aug Northwest Prince William

Mostly cloudy with a 30 percent chance of Showers. Patchy fog after midnight. Lows in the mid 60s. Northeast Winds 5 to 10 Mph.

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Manassas National Battlefield Park Temperature Statistics

August Temperature

Manassas, Manassas Regional Airport/Harry P. Davis Field (7.5 miles)

  • Lowest 10 August, 2025

    55 °F

  • Average August

    73.4 °F

  • Highest 14 August, 2025

    91.9 °F

Climate (2020–Present)

Manassas, Manassas Regional Airport/Harry P. Davis Field (7.5 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    57 °F

  • Average High 2020–2025

    68 °F
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