Haymarket Weather Forecast

    • 14
    • 42

    Mostly Sunny

    • 13
    • 30

    Mostly Sunny

    • 28
    • 40

    Partly Sunny

    • 24
    • 52

    Partly Sunny

    • 11
    • 38

    Mostly Cloudy

    • 10
    • 19

    Chance Rain/Snow

    • 7
    • 20

    Chance Snow

Today 19 Jan Northwest Prince William

Sunny. Highs in the lower 40s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 19 Jan Northwest Prince William

Mostly clear. Lows around 14. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Haymarket Temperature Statistics

January Temperature

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

  • Lowest 5 January, 2026

    19 °F

  • Average January

    37.5 °F

  • Highest 7 January, 2026

    63 °F

Climate (2021–Present)

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 °F

  • Average High 2021–2026

    68 °F
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