Agnewville Weather Forecast

    • 73
    • 87

    Rain Showers Likely

    • 73
    • 91

    Partly Sunny

    • 72
    • 91

    Chance Thunderstorms

    • 71
    • 91

    Chance Thunderstorms

    • 73
    • 91

    Chance Thunderstorms

    • 74
    • 93

    Slight Chance Thunderstorms

Today 5 Aug Central and Southeast Prince William/Manassas/Manassas Park

Patchy fog in the morning. Mostly cloudy with Showers likely with a slight chance of Thunderstorms in the Morning, then partly sunny with a chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. East Winds around 5 Mph, becoming south around 5 Mph in the afternoon. Chance of rain 70 percent.

Tonight 5 Aug Central and Southeast Prince William/Manassas/Manassas Park

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 30 percent.

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Agnewville Temperature Statistics

August Temperature

Fort Belvoir (6.2 miles)

  • Lowest 1 August, 2026

    65.5 °F

  • Average August

    78.3 °F

  • Highest 1 August, 2026

    90.7 °F

Climate (2021–2026)

Fort Belvoir (6.2 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.3 °F
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