Manassas Weather Forecast

    • 47
    • 73

    Chance Rain Showers

    • 40
    • 65

    Mostly Sunny

    • 38
    • 64

    Mostly Sunny

    • 39
    • 62

    Partly Sunny

    • 44
    • 61

    Mostly Cloudy

    • 46
    • 64

    Chance Rain Showers

Today 21 Oct Northwest Prince William

Mostly sunny. A slight chance of Showers in the afternoon. Highs in the lower 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 21 Oct Northwest Prince William

Clear. Lows in the lower 40s. Southwest Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Manassas Temperature Statistics

October Temperature

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    68.1 °F
Get WillyWeather+ to remove ads