Agnewville Weather Forecast

    • 74
    • 88

    Rain Showers Likely

    • 76
    • 90

    Rain Showers Likely

    • 75
    • 93

    Chance Thunderstorms

    • 73
    • 92

    Chance Thunderstorms

    • 73
    • 89

    Chance Thunderstorms

    • 73
    • 90

    Chance Thunderstorms

Today 15 Jul Central and Southeast Prince William/Manassas/Manassas Park

Partly sunny. Patchy fog in the morning. A slight chance of Showers and Thunderstorms in the Morning, then Showers likely with a chance of Thunderstorms in the afternoon. Highs in the upper 80s. Light and variable Winds, becoming southeast around 5 Mph in the afternoon. Chance of rain 70 percent.

Tonight 15 Jul Central and Southeast Prince William/Manassas/Manassas Park

Mostly cloudy. A chance of Thunderstorms with a slight chance of Showers in the Evening, then a slight chance of Showers after midnight. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 50 percent.

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Agnewville Temperature Statistics

July Temperature

Fort Belvoir (6.2 miles)

  • Lowest 5 July, 2025

    61.7 °F

  • Average July

    79.9 °F

  • Highest 8 July, 2025

    96.3 °F

Climate (2020–Present)

Fort Belvoir (6.2 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    68.4 °F
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