Chesapeake Bay - Willow Beach Weather Forecast

    • 71
    • 85

    Chance Rain Showers

    • 66
    • 79

    Slight Chance Rain Showers

    • 65
    • 81

    Mostly Sunny

    • 69
    • 82

    Partly Sunny

    • 68
    • 84

    Chance Rain Showers

    • 63
    • 84

    Slight Chance Thunderstorms

Today 20 Aug Anne Arundel

Mostly cloudy this Morning, then becoming mostly sunny. Patchy fog this morning. A slight chance of Showers and drizzle this Morning, then a chance of Showers and Thunderstorms this afternoon. Highs in the mid 80s. East Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 20 Aug Anne Arundel

Mostly cloudy with a chance of Showers. A chance of Thunderstorms, mainly in the evening. Patchy fog after midnight. Lows in the upper 60s. East Winds 10 to 15 Mph. Chance of rain 50 percent.

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Chesapeake Bay - Willow Beach Temperature Statistics

August Temperature

St Marys County Airport (21.7 miles)

  • Lowest 4 August, 2025

    55.4 °F

  • Average August

    72.7 °F

  • Highest 17 August, 2025

    90.5 °F

Climate (2020–Present)

St Marys County Airport (21.7 miles)

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  • Average Low 2020–2025

    49.6 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    66.7 °F
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