Potomac River - Hallowing Point Weather Forecast

    • 66
    • 81

    Becoming Sunny

    • 67
    • 79

    Mostly Cloudy

    • 68
    • 79

    Partly Sunny

    • 70
    • 81

    Slight Chance Thunderstorms

    • 73
    • 85

    Chance Thunderstorms

    • 72
    • 86

    Rain Showers Likely

Today 23 Jul Charles

Mostly sunny. Highs around 80. North Winds 5 to 10 Mph.

Tonight 23 Jul Charles

Clear. Lows in the lower 60s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Hallowing Point Temperature Statistics

July Temperature

Fort Belvoir (6.2 miles)

  • Lowest 13 July, 2026

    62.4 °F

  • Average July

    81.2 °F

  • Highest 4 July, 2026

    101.3 °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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