Chesapeake Bay - Potomac River Entrance Weather Forecast

    • 73
    • 74

    Rain Showers

    • 77
    • 79

    Chance Thunderstorms

    • 79
    • 88

    Chance Thunderstorms

    • 76
    • 88

    Chance Thunderstorms

    • 74
    • 82

    Mostly Sunny

    • 77
    • 83

    Mostly Sunny

Today 16 Jun St. Marys

Cloudy. Scattered Showers late this Morning, then scattered Showers with a slight chance of Thunderstorms this afternoon. Highs in the mid 70s. Northeast Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 16 Jun St. Marys

Mostly cloudy with a 20 percent chance of Showers. Lows in the upper 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesapeake Bay - Potomac River Entrance Temperature Statistics

June Temperature

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (9.3 miles)

  • Lowest 1 June, 2025

    51.7 °F

  • Average June

    73.5 °F

  • Highest 12 June, 2025

    89.1 °F

Climate (2020–Present)

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (9.3 miles)

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  • Average Low 2020–2025

    52.5 °F

  • Average 2020–2025

    60.9 °F

  • Average High 2020–2025

    69.3 °F
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