Potomac River - McKays Beach Weather Forecast

    • 70
    • 75

    Slight Chance Thunderstorms

    • 75
    • 81

    Chance Thunderstorms

    • 77
    • 89

    Chance Thunderstorms

    • 72
    • 91

    Chance Thunderstorms

    • 69
    • 84

    Mostly Sunny

    • 73
    • 85

    Mostly Sunny

Today 16 Jun St. Marys

Cloudy. Patchy fog this morning. A chance of Showers this Morning, then a slight chance of Showers and Thunderstorms this afternoon. Highs in the mid 70s. Northeast Winds 5 to 10 Mph. Chance of rain 30 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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Potomac River - McKays Beach Temperature Statistics

June Temperature

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (7.5 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 (7.5 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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