Chesapeake Bay - Potomac River Entrance Weather Forecast

    • 74
    • 80

    Becoming Sunny

    • 74
    • 83

    Mostly Sunny

    • 76
    • 83

    Mostly Cloudy

    • 76
    • 83

    Chance Rain Showers

    • 75
    • 80

    Chance Rain Showers

    • 75
    • 81

    Chance Rain Showers

    • 76
    • 82

    Slight Chance Thunderstorms

Today 3 Aug St. Marys

Partly sunny. Highs around 80. Northeast Winds around 5 Mph.

Tonight 3 Aug St. Marys

Partly cloudy in the Evening, then clearing. Lows in the mid 60s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesapeake Bay - Potomac River Entrance Temperature Statistics

August Temperature

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

  • Lowest 1 August, 2025

    70 °F

  • Average August

    72.3 °F

  • Highest 1 August, 2025

    77 °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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