Potomac River - Cornfield Harbor Weather Forecast

    • 51
    • 61

    Chance Rain

    • 50
    • 61

    Mostly Sunny

    • 53
    • 66

    Mostly Sunny

    • 50
    • 60

    Mostly Sunny

    • 58
    • 64

    Chance Rain

    • 52
    • 64

    Partly Sunny

Today 3 Nov St. Marys

Mostly cloudy with a chance of rain this Morning, then partly sunny this afternoon. Highs in the lower 60s. Northeast Winds around 5 Mph, becoming northwest this afternoon. Chance of rain 50 percent.

Tonight 3 Nov St. Marys

Clear. Lows in the mid 40s. Northwest Winds 5 to 10 Mph with Gusts up to 30 Mph.

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Potomac River - Cornfield Harbor Temperature Statistics

November Temperature

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

  • Lowest 1 November, 2025

    44.1 °F

  • Average November

    53.5 °F

  • Highest 1 November, 2025

    63 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    52.2 °F

  • Average 2020–2025

    60.7 °F

  • Average High 2020–2025

    69.1 °F
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