Potomac River - Wicomico River (Potomac) Entrance Weather Forecast

    • 33
    • 56

    Rain/Snow

    • 44
    • 50

    Breezy

    • 43
    • 55

    Mostly Cloudy

    • 55
    • 58

    Mostly Cloudy

    • 33
    • 66

    Rain Showers

    • 27
    • 39

    Partly Sunny

Today 12 Mar St. Marys

Rain late this Morning, then rain and snow this afternoon. Little or no snow accumulation. Cooler with Highs in the upper 50s. Temperature falling into the upper 30s this afternoon. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of precipitation near 100 percent.

Tonight 12 Mar St. Marys

Mostly clear. Cooler with Lows in the lower 30s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Wicomico River (Potomac) Entrance Temperature Statistics

March Temperature

St Marys County Airport (14.9 miles)

  • Lowest 2 March, 2026

    31.5 °F

  • Average March

    50.7 °F

  • Highest 10 March, 2026

    82.9 °F

Climate (2021–Present)

St Marys County Airport (14.9 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    66.6 °F
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