Mantua Weather Forecast

    • 64
    • 90

    Decreasing Clouds

    • 67
    • 85

    Increasing Clouds

    • 72
    • 89

    Partly Sunny

    • 73
    • 92

    Partly Sunny

    • 75
    • 94

    Partly Sunny

    • 75
    • 94

    Slight Chance Thunderstorms

    • 73
    • 92

    Chance Rain Showers

Today 28 Aug Arlington/Falls Church/Alexandria

Partly sunny with isolated Showers and Thunderstorms. Highs around 90. North Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 28 Aug Arlington/Falls Church/Alexandria

Mostly cloudy this Evening, then clearing. Lows in the mid 60s. Northeast Winds around 5 Mph.

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Mantua Temperature Statistics

August Temperature

Fort Belvoir (9.9 miles)

  • Lowest 24 August, 2026

    58.8 °F

  • Average August

    77.9 °F

  • Highest 8 August, 2026

    92.8 °F

Climate (2021–2026)

Fort Belvoir (9.9 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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