Potomac River - Monroe Bay Entrance Weather Forecast

    • 49
    • 62

    Becoming Sunny

    • 55
    • 71

    Mostly Sunny

    • 57
    • 75

    Chance Rain Showers

    • 55
    • 81

    Rain Showers Likely

    • 48
    • 65

    Slight Chance Thunderstorms

    • 52
    • 67

    Partly Sunny

Today 7 May Westmoreland

Cloudy. A chance of Showers late this Morning, then a slight chance of Showers this afternoon. Highs in the lower 60s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 7 May Westmoreland

Partly cloudy in the Evening, then clearing. Lows in the upper 40s. Southwest Winds around 5 Mph, becoming northwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Monroe Bay Entrance Temperature Statistics

May Temperature

St Marys County Airport (23 miles)

  • Lowest 1 May, 2026

    39.9 °F

  • Average May

    58.2 °F

  • Highest 5 May, 2026

    83.7 °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

    66.7 °F
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