Potomac River - Hollis Marsh Weather Forecast

    • 51
    • 58

    Rain Showers Likely

    • 55
    • 65

    Mostly Sunny

    • 57
    • 69

    Chance Rain Showers

    • 55
    • 73

    Rain Showers Likely

    • 49
    • 64

    Slight Chance Thunderstorms

    • 52
    • 65

    Partly Sunny

Today 7 May Westmoreland

Cloudy. Showers Likely, mainly this morning. Highs in the lower 60s. North Winds 5 to 10 Mph. Chance of rain 70 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 Real-Time

Potomac River - Hollis Marsh Temperature Statistics

May Temperature

St Marys County Airport (14.9 miles)

  • Lowest 1 May, 2026

    39.9 °F

  • Average May

    54.8 °F

  • Highest 4 May, 2026

    77.4 °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

    66.7 °F
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