Potomac River - Chapman Point Weather Forecast

    • 55
    • 58

    Rain

    • 51
    • 66

    Rain

    • 46
    • 58

    Breezy

    • 45
    • 59

    Partly Sunny

    • 44
    • 59

    Partly Sunny

    • 49
    • 61

    Partly Sunny

    • 44
    • 60

    Mostly Sunny

Today 29 Oct Charles

Cloudy with isolated Showers. Highs in the upper 50s. Northeast Winds 10 to 15 Mph. Chance of rain 20 percent.

Tonight 29 Oct Charles

Rain. A slight chance of Thunderstorms after midnight. Lows in the lower 50s. East Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

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Potomac River - Chapman Point Temperature Statistics

October Temperature

Fort Belvoir (6.8 miles)

  • Lowest 24 October, 2025

    34.3 °F

  • Average October

    58.3 °F

  • Highest 6 October, 2025

    83.1 °F

Climate (2020–Present)

Fort Belvoir (6.8 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    68.3 °F
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