Potomac River - Whites Neck Creek Entrance Weather Forecast

    • 76
    • 94

    Thunderstorms

    • 75
    • 91

    Rain Showers Likely

    • 73
    • 84

    Rain Showers Likely

    • 71
    • 82

    Chance Thunderstorms

    • 72
    • 83

    Chance Rain Showers

    • 75
    • 86

    Slight Chance Thunderstorms

Today 4 Jul St. Marys

Sunny. Scattered Showers and Thunderstorms this afternoon. Some Thunderstorms may be severe with damaging Winds and heavy rainfall. Hot with Highs in the upper 90s. Light and variable Winds, becoming southwest 5 to 10 Mph this afternoon. Chance of rain 50 percent. Heat index Values up to 113.

Tonight 4 Jul St. Marys

Mostly cloudy with scattered Showers and Thunderstorms in the Evening, then partly cloudy with isolated Showers and Thunderstorms after midnight. Some Thunderstorms may be severe with damaging Winds and heavy rainfall in the evening. Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Potomac River - Whites Neck Creek Entrance Temperature Statistics

July Temperature

St Marys County Airport (13.7 miles)

  • Lowest 1 July, 2026

    74.3 °F

  • Average July

    85.5 °F

  • Highest 2 July, 2026

    98.8 °F

Climate (2021–2026)

St Marys County Airport (13.7 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    66.8 °F
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