Potomac River - Lake Conoy Entrance Weather Forecast

    • 76
    • 85

    Thunderstorms

    • 74
    • 84

    Mostly Sunny

    • 77
    • 85

    Mostly Sunny

    • 74
    • 83

    Slight Chance Thunderstorms

    • 73
    • 80

    Mostly Sunny

    • 73
    • 81

    Slight Chance Rain Showers

Today 15 Aug St. Marys

Partly sunny with scattered Showers and Thunderstorms. Highs in the upper 80s. East Winds around 5 Mph. Chance of rain 30 percent.

Tonight 15 Aug St. Marys

Partly cloudy with scattered Showers and Thunderstorms in the Evening, then mostly cloudy after midnight. Lows in the lower 70s. East Winds around 5 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Lake Conoy Entrance Temperature Statistics

August Temperature

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (8.1 miles)

  • Lowest 4 August, 2025

    58.6 °F

  • Average August

    73 °F

  • Highest 12 August, 2025

    86.6 °F

Climate (2020–Present)

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (8.1 miles)

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  • Average Low 2020–2025

    52.4 °F

  • Average 2020–2025

    60.8 °F

  • Average High 2020–2025

    69.2 °F
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