Potomac River - Alexandria Weather Forecast

    • 44
    • 68

    Sunny

    • 50
    • 72

    Chance Rain Showers

    • 43
    • 65

    Mostly Sunny

    • 42
    • 63

    Mostly Sunny

    • 42
    • 62

    Partly Sunny

    • 47
    • 61

    Slight Chance Rain Showers

    • 48
    • 64

    Partly Sunny

Today 20 Oct Arlington/Falls Church/Alexandria

Mostly sunny. Highs in the mid 60s. West Winds around 15 Mph with Gusts up to 30 Mph.

Tonight 20 Oct Arlington/Falls Church/Alexandria

Clear. Lows in the mid 40s. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest around 5 Mph after midnight.

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Potomac River - Alexandria Temperature Statistics

October Temperature

Washington/Reagan National Airport, DC (2.5 miles)

  • Lowest 17 October, 2025

    46 °F

  • Average October

    63 °F

  • Highest 6 October, 2025

    81 °F

Climate (2020–Present)

Washington/Reagan National Airport, DC (2.5 miles)

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  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    60.5 °F

  • Average High 2020–2025

    69.3 °F
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