Potomac River - Rosilie Island Weather Forecast

    • 66
    • 92

    Rain Showers

    • 60
    • 81

    Mostly Sunny

    • 62
    • 81

    Chance Thunderstorms

    • 67
    • 86

    Partly Sunny

    • 71
    • 94

    Chance Thunderstorms

    • 65
    • 85

    Chance Rain Showers

Today 14 Jun Arlington/Falls Church/Alexandria

Partly sunny with scattered Showers and Thunderstorms. Highs in the lower 90s. South Winds around 15 Mph. Chance of rain 30 percent.

Tonight 14 Jun Arlington/Falls Church/Alexandria

Mostly cloudy. Showers with a chance of Thunderstorms in the Evening, then a slight chance of Showers and Thunderstorms after midnight. Lows in the mid 60s. South Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Rosilie Island Temperature Statistics

June Temperature

Washington/Reagan National Airport, DC (3.7 miles)

  • Lowest 2 June, 2026

    55.7 °F

  • Average June

    77.1 °F

  • Highest 11 June, 2026

    99.6 °F

Climate (2021–Present)

Washington/Reagan National Airport, DC (3.7 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    60.4 °F

  • Average High 2021–2026

    69.2 °F
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