Agnewville Weather Forecast

    • 49
    • 73

    Slight Chance Rain Showers

    • 43
    • 65

    Mostly Sunny

    • 40
    • 63

    Mostly Sunny

    • 40
    • 62

    Partly Sunny

    • 43
    • 60

    Partly Sunny

    • 45
    • 60

    Mostly Cloudy

Today 21 Oct Central and Southeast Prince William/Manassas/Manassas Park

Sunny. Highs in the lower 70s. South Winds 5 to 10 Mph. Gusts up to 25 Mph this afternoon.

Tonight 21 Oct Central and Southeast Prince William/Manassas/Manassas Park

Mostly cloudy with a slight chance of Showers in the Evening, then mostly clear after midnight. Lows in the upper 40s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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Agnewville Temperature Statistics

October Temperature

Fort Belvoir (6.2 miles)

  • Lowest 17 October, 2025

    39.4 °F

  • Average October

    60.9 °F

  • Highest 6 October, 2025

    83.1 °F

Climate (2020–Present)

Fort Belvoir (6.2 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    68.4 °F
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