Potomac River - Long Point Weather Forecast

    • 75
    • 92

    Chance Thunderstorms

    • 76
    • 92

    Chance Thunderstorms

    • 75
    • 91

    Mostly Sunny

    • 77
    • 92

    Mostly Sunny

    • 76
    • 93

    Chance Rain Showers

    • 73
    • 90

    Chance Rain Showers

Today 7 Aug St. Marys

Mostly sunny. Highs in the lower 90s. Southwest Winds 5 to 10 Mph.

Tonight 7 Aug St. Marys

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Potomac River - Long Point Temperature Statistics

August Temperature

St Marys County Airport (10.6 miles)

  • Lowest 1 August, 2026

    69.1 °F

  • Average August

    78 °F

  • Highest 1 August, 2026

    89.1 °F

Climate (2021–2026)

St Marys County Airport (10.6 miles)

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  • Average Low 2021–2026

    49.4 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    66.9 °F
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