Bull Run Regional Park Weather Forecast

    • 59
    • 85

    Becoming Sunny

    • 62
    • 88

    Mostly Sunny

    • 62
    • 81

    Mostly Cloudy

    • 62
    • 78

    Slight Chance Thunderstorms

    • 62
    • 82

    Partly Sunny

    • 64
    • 86

    Mostly Cloudy

Today 18 Sep Northwest Prince William

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

Tonight 18 Sep Northwest Prince William

Mostly clear. Lows in the upper 50s. West Winds around 5 Mph.

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Bull Run Regional Park Temperature Statistics

September Temperature

Manassas, Manassas Regional Airport/Harry P. Davis Field (5.6 miles)

  • Lowest 8 September, 2025

    44.1 °F

  • Average September

    67.9 °F

  • Highest 6 September, 2025

    91 °F

Climate (2020–Present)

Manassas, Manassas Regional Airport/Harry P. Davis Field (5.6 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    57 °F

  • Average High 2020–2025

    68 °F
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