Potomac River - Swan Creek Entrance Weather Forecast

    • 62
    • 80

    Becoming Sunny

    • 66
    • 85

    Mostly Sunny

    • 68
    • 85

    Mostly Cloudy

    • 69
    • 82

    Chance Rain Showers

    • 68
    • 80

    Chance Rain Showers

    • 68
    • 81

    Slight Chance Rain Showers

    • 70
    • 82

    Slight Chance Thunderstorms

Today 3 Aug Prince Georges

Mostly sunny. Highs in the lower 80s. East Winds around 5 Mph.

Tonight 3 Aug Prince Georges

Mostly clear. Lows in the lower 60s. East Winds around 5 Mph this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Swan Creek Entrance Temperature Statistics

August Temperature

Fort Belvoir (8.1 miles)

  • Lowest 1 August, 2025

    68.9 °F

  • Average August

    71.7 °F

  • Highest 1 August, 2025

    76.6 °F

Climate (2020–Present)

Fort Belvoir (8.1 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    68.4 °F
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