Chesapeake Bay - Chesapeake Bay Basin Weather Forecast

    • 51
    • 66

    Slight Chance Rain Showers

    • 48
    • 61

    Sunny

    • 49
    • 60

    Mostly Sunny

    • 51
    • 60

    Mostly Sunny

    • 51
    • 62

    Mostly Sunny

    • 47
    • 61

    Mostly Sunny

Today 30 Oct St. Marys

Mostly cloudy with numerous Showers and scattered Thunderstorms late this Morning, then partly sunny with scattered Showers this afternoon. Highs in the upper 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 30 Oct St. Marys

Mostly clear. Lows in the upper 40s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Chesapeake Bay - Chesapeake Bay Basin Temperature Statistics

October Temperature

Patuxent River, Naval Air Station (1.2 miles)

  • Lowest 24 October, 2025

    37.9 °F

  • Average October

    60.5 °F

  • Highest 6 October, 2025

    80.1 °F

Climate (2020–Present)

Patuxent River, Naval Air Station (1.2 miles)

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  • Average Low 2020–2025

    53 °F

  • Average 2020–2025

    61.3 °F

  • Average High 2020–2025

    69.5 °F
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