Potomac River - Monroe Bay Entrance Weather Forecast

    • 55
    • 82

    Increasing Clouds

    • 36
    • 61

    Chance Rain Showers

    • 37
    • 52

    Partly Sunny

    • 45
    • 61

    Mostly Cloudy

    • 50
    • 66

    Mostly Cloudy

    • 37
    • 61

    Chance Rain Showers

Today 22 Mar Westmoreland

Partly sunny. Highs in the lower 80s. South Winds 5 to 10 Mph. Gusts up to 20 Mph in the afternoon.

Tonight 22 Mar Westmoreland

Mostly clear in the Evening, then partly cloudy with a chance of Showers after midnight. Lows in the mid 50s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Monroe Bay Entrance Temperature Statistics

March Temperature

St Marys County Airport (23 miles)

  • Lowest 18 March, 2026

    26.4 °F

  • Average March

    50.3 °F

  • Highest 11 March, 2026

    85.8 °F

Climate (2021–Present)

St Marys County Airport (23 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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