Potomac River - Cornfield Harbor Weather Forecast

    • 75
    • 82

    Increasing Clouds

    • 76
    • 87

    Rain Showers Likely

    • 74
    • 84

    Rain Showers Likely

    • 74
    • 81

    Partly Sunny

    • 74
    • 83

    Mostly Sunny

    • 76
    • 86

    Mostly Sunny

Today 25 Jun St. Marys

Mostly sunny. Highs in the upper 80s. South Winds 5 to 10 Mph.

Tonight 25 Jun St. Marys

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Potomac River - Cornfield Harbor Temperature Statistics

June Temperature

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

  • Lowest 3 June, 2026

    54 °F

  • Average June

    75.7 °F

  • Highest 12 June, 2026

    98.1 °F

Climate (2021–2026)

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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