Potomac River - McKay Cove Entrance Weather Forecast

    • 75
    • 92

    Chance Thunderstorms

    • 72
    • 94

    Rain Showers Likely

    • 71
    • 86

    Mostly Sunny

    • 72
    • 85

    Chance Rain Showers

    • 68
    • 78

    Rain Showers Likely

    • 67
    • 74

    Chance Rain Showers

Today 11 Jun St. Marys

Mostly sunny. Isolated Showers and Thunderstorms in the afternoon. Highs in the mid 90s. West Winds around 5 Mph. Chance of rain 20 percent.

Tonight 11 Jun St. Marys

Mostly cloudy with scattered Showers and Thunderstorms in the Evening, then partly cloudy with isolated Showers and Thunderstorms after midnight. Lows in the mid 70s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - McKay Cove Entrance Temperature Statistics

June Temperature

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (6.8 miles)

  • Lowest 3 June, 2026

    54 °F

  • Average June

    73 °F

  • Highest 6 June, 2026

    91 °F

Climate (2021–Present)

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (6.8 miles)

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  • Average Low 2021–2026

    51.9 °F

  • Average 2021–2026

    60.4 °F

  • Average High 2021–2026

    68.8 °F
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