Potomac River - Wicomico River (Potomac) Entrance Weather Forecast

    • 11
    • 30

    Becoming Sunny

    • 14
    • 28

    Mostly Sunny

    • 11
    • 24

    Partly Sunny

    • 8
    • 23

    Partly Sunny

    • 10
    • 19

    Partly Sunny

    • 14
    • 23

    Partly Sunny

Today 26 Jan St. Marys

Mostly sunny. Highs around 30. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 26 Jan St. Marys

Mostly clear. Cold with Lows around 8 above. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 2 below.

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Potomac River - Wicomico River (Potomac) Entrance Temperature Statistics

January Temperature

St Marys County Airport (14.9 miles)

  • Lowest 21 January, 2026

    17.2 °F

  • Average January

    38.8 °F

  • Highest 7 January, 2026

    65.7 °F

Climate (2021–Present)

St Marys County Airport (14.9 miles)

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  • Average Low 2021–2026

    49.5 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    66.7 °F
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