Potomac River - Nomini Bay Weather Forecast

    • 76
    • 90

    Slight Chance Thunderstorms

    • 76
    • 91

    Slight Chance Thunderstorms

    • 75
    • 89

    Chance Thunderstorms

    • 74
    • 88

    Rain Showers Likely

    • 75
    • 88

    Chance Thunderstorms

    • 76
    • 89

    Chance Thunderstorms

Today 11 Jul Westmoreland

Partly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the upper 80s. Northwest Winds around 5 Mph, becoming east in the afternoon. Chance of rain 20 percent.

Tonight 11 Jul Westmoreland

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Humid with Lows in the lower 70s. Southeast Winds around 5 Mph. Chance of rain 20 percent.

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Potomac River - Nomini Bay Temperature Statistics

July Temperature

St Marys County Airport (14.3 miles)

  • Lowest 5 July, 2025

    62.6 °F

  • Average July

    77.8 °F

  • Highest 1 July, 2025

    91.4 °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

    58.1 °F

  • Average High 2020–2025

    66.8 °F
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