Potomac River - Gunston Cove Weather Forecast

    • 74
    • 94

    Rain Showers Likely

    • 74
    • 93

    Partly Sunny

    • 78
    • 95

    Partly Sunny

    • 76
    • 92

    Chance Rain Showers

    • 74
    • 89

    Chance Thunderstorms

    • 73
    • 88

    Chance Thunderstorms

Today 8 Aug Charles

Mostly sunny. Patchy fog in the morning. A chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 8 Aug Charles

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Gunston Cove Temperature Statistics

August Temperature

Fort Belvoir (3.7 miles)

  • Lowest 1 August, 2026

    65.5 °F

  • Average August

    79.2 °F

  • Highest 1 August, 2026

    90.7 °F

Climate (2021–2026)

Fort Belvoir (3.7 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.3 °F
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