Manassas Weather Forecast

    • 73
    • 94

    Chance Thunderstorms

    • 70
    • 91

    Rain Showers Likely

    • 69
    • 89

    Chance Thunderstorms

    • 68
    • 90

    Slight Chance Thunderstorms

    • 65
    • 83

    Chance Rain Showers

    • 65
    • 83

    Slight Chance Rain Showers

Today 10 Aug Northwest Prince William

Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 10 Aug Northwest Prince William

Mostly clear. Lows in the lower 70s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Manassas Temperature Statistics

August Temperature

Manassas, Manassas Regional Airport/Harry P. Davis Field (3.1 miles)

  • Lowest 1 August, 2026

    63 °F

  • Average August

    78.4 °F

  • Highest 6 August, 2026

    93 °F

Climate (2021–2026)

Manassas, Manassas Regional Airport/Harry P. Davis Field (3.1 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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