Potomac River - Four Mile Run Entrance Weather Forecast

    • 51
    • 61

    Rain Showers

    • 44
    • 64

    Rain Showers

    • 34
    • 50

    Partly Sunny

    • 40
    • 54

    Partly Sunny

    • 34
    • 54

    Chance Rain

    • 30
    • 47

    Slight Chance Rain

Today 4 Mar Arlington/Falls Church/Alexandria

Partly sunny. Highs around 60. South Winds 5 to 10 Mph.

Tonight 4 Mar Arlington/Falls Church/Alexandria

Partly cloudy. Lows in the lower 30s. South Winds around 5 Mph.

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  • Temperature Real-Time

Potomac River - Four Mile Run Entrance Temperature Statistics

March Temperature

Washington/Reagan National Airport, DC (0.6 miles)

  • Lowest 1 March, 2025

    30.9 °F

  • Average March

    49 °F

  • Highest 1 March, 2025

    64.9 °F

Climate (2020–Present)

Washington/Reagan National Airport, DC (0.6 miles)

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  • Average Low 2020–2025

    52.5 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    69 °F
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