Haymarket Weather Forecast

    • 72
    • 91

    Severe Tstms

    • 63
    • 86

    Chance Thunderstorms

    • 59
    • 80

    Mostly Sunny

    • 63
    • 81

    Mostly Cloudy

    • 64
    • 82

    Partly Sunny

    • 68
    • 87

    Slight Chance Thunderstorms

Today 21 Jul Northwest Prince William

Mostly cloudy. Isolated Showers and Thunderstorms in the Morning, then Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce gusty Winds and small hail. Highs in the lower 90s. Southwest Winds 10 to 15 Mph. Chance of rain 80 percent.

Tonight 21 Jul Northwest Prince William

Mostly cloudy with scattered Showers and Thunderstorms. Some Thunderstorms may produce gusty Winds and small hail. Lows in the lower 70s. Southwest Winds 10 to 15 Mph. Chance of rain 50 percent.

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Haymarket Temperature Statistics

July Temperature

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

  • Lowest 14 July, 2026

    63 °F

  • Average July

    80.4 °F

  • Highest 4 July, 2026

    100 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    57.1 °F

  • Average High 2021–2026

    68.1 °F
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