Haymarket Weather Forecast

    • 45
    • 69

    Sunny

    • 43
    • 65

    Mostly Sunny

    • 47
    • 67

    Sunny

    • 39
    • 60

    Sunny

    • 41
    • 60

    Mostly Sunny

    • 44
    • 64

    Mostly Sunny

Today 20 Oct Northwest Prince William

Sunny. Highs in the upper 60s. North Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 20 Oct Northwest Prince William

Clear. Lows in the mid 40s. North Winds 5 to 10 Mph.

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Haymarket Temperature Statistics

October Temperature

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

  • Lowest 7 October, 2026

    39.9 °F

  • Average October

    63.2 °F

  • Highest 14 October, 2026

    91 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    57.1 °F

  • Average High 2021–2026

    68.1 °F
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