Brentwood Weather Forecast

    • 71
    • 87

    Increasing Clouds

    • 71
    • 84

    Rain Showers

    • 70
    • 89

    Slight Chance Thunderstorms

    • 66
    • 86

    Mostly Sunny

    • 70
    • 88

    Slight Chance Thunderstorms

    • 66
    • 86

    Chance Rain Showers

    • 64
    • 83

    Chance Rain Showers

Today 15 Aug Charles

Partly sunny. Highs in the upper 80s. Southeast Winds around 5 Mph.

Tonight 15 Aug Charles

Partly cloudy. Lows in the lower 70s. Southeast Winds around 5 Mph.

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  • Temperature Real-Time

Brentwood Temperature Statistics

August Temperature

Fort Belvoir (11.2 miles)

  • Lowest 1 August, 2026

    65.5 °F

  • Average August

    79.8 °F

  • Highest 8 August, 2026

    92.8 °F

Climate (2021–2026)

Fort Belvoir (11.2 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.3 °F
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