Potomac River - Nomini Bay Weather Forecast

    • 72
    • 82

    Slight Chance Thunderstorms

    • 74
    • 87

    Chance Thunderstorms

    • 75
    • 89

    Chance Thunderstorms

    • 74
    • 88

    Chance Thunderstorms

    • 72
    • 87

    Slight Chance Thunderstorms

    • 70
    • 85

    Mostly Sunny

Today 11 Aug Westmoreland

Mostly cloudy late this Morning, then becoming partly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 80s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 11 Aug Westmoreland

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows around 70. South Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Nomini Bay Temperature Statistics

August Temperature

St Marys County Airport (14.3 miles)

  • Lowest 4 August, 2025

    55.4 °F

  • Average August

    70.1 °F

  • Highest 4 August, 2025

    80.6 °F

Climate (2020–Present)

St Marys County Airport (14.3 miles)

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  • Average Low 2020–2025

    49.6 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    66.7 °F
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