Agnewville Weather Forecast

    • 68
    • 80

    Mostly Cloudy

    • 65
    • 85

    Rain Showers

    • 63
    • 75

    Chance Rain Showers

    • 58
    • 69

    Rain Showers Likely

    • 57
    • 66

    Chance Rain Showers

    • 55
    • 66

    Chance Rain Showers

    • 54
    • 69

    Mostly Cloudy

Today 19 Sep Central and Southeast Prince William/Manassas/Manassas Park

Mostly sunny. Highs in the lower 70s.

Tonight 19 Sep Central and Southeast Prince William/Manassas/Manassas Park

Mostly cloudy. Lows in the upper 60s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Agnewville Temperature Statistics

September Temperature

Fort Belvoir (6.2 miles)

  • Lowest 15 September, 2026

    53.8 °F

  • Average September

    75.4 °F

  • Highest 1 September, 2026

    96.4 °F

Climate (2021–2026)

Fort Belvoir (6.2 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.4 °F
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