Potomac River - Belle Haven Marina Weather Forecast

    • 46
    • 71

    Increasing Clouds

    • 38
    • 58

    Mostly Sunny

    • 54
    • 64

    Mostly Cloudy

    • 48
    • 71

    Chance Rain

    • 38
    • 68

    Chance Rain/Snow

    • 31
    • 47

    Slight Chance Rain

Today 5 Nov Arlington/Falls Church/Alexandria

Sunny. Highs around 70. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 5 Nov Arlington/Falls Church/Alexandria

Mostly clear. Lows in the lower 40s. Southwest Winds around 5 Mph.

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Potomac River - Belle Haven Marina Temperature Statistics

November Temperature

Washington/Reagan National Airport, DC (5 miles)

  • Lowest 2 November, 2025

    45 °F

  • Average November

    54.9 °F

  • Highest 2 November, 2025

    66 °F

Climate (2020–Present)

Washington/Reagan National Airport, DC (5 miles)

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  • Average Low 2020–2025

    52.6 °F

  • Average 2020–2025

    60.5 °F

  • Average High 2020–2025

    69.3 °F
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