Haymarket Weather Forecast

    • 41
    • 65

    Increasing Clouds

    • 53
    • 73

    Partly Sunny

    • 49
    • 77

    Rain Showers Likely

    • 41
    • 66

    Mostly Sunny

    • 44
    • 71

    Mostly Sunny

    • 41
    • 61

    Mostly Sunny

    • 45
    • 63

    Mostly Cloudy

Today 17 Oct Northwest Prince William

Sunny. Highs in the mid 60s. Northwest Winds around 5 Mph.

Tonight 17 Oct Northwest Prince William

Mostly clear late this Evening, then becoming partly cloudy. Lows in the lower 40s. Light and variable Winds, becoming southwest around 5 Mph.

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Haymarket Temperature Statistics

October Temperature

Manassas, Manassas Regional Airport/Harry P. Davis Field (8.7 miles)

  • Lowest 10 October, 2025

    39 °F

  • Average October

    60.2 °F

  • Highest 6 October, 2025

    82.9 °F

Climate (2020–Present)

Manassas, Manassas Regional Airport/Harry P. Davis Field (8.7 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    68.1 °F
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