Potomac River - Cornfield Harbor Weather Forecast

    • 64
    • 75

    Sunny

    • 67
    • 78

    Mostly Sunny

    • 72
    • 82

    Mostly Sunny

    • 74
    • 85

    Partly Sunny

    • 68
    • 81

    Chance Thunderstorms

    • 62
    • 71

    Partly Sunny

    • 65
    • 73

    Partly Sunny

Today 3 Jun St. Marys

Sunny. Highs around 80. Northeast Winds 5 to 10 Mph.

Tonight 3 Jun St. Marys

Clear. Lows in the upper 50s. East Winds around 5 Mph, becoming southwest after midnight.

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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 1 June, 2026

    61 °F

  • Average June

    68.1 °F

  • Highest 1 June, 2026

    79 °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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