Chesapeake Bay - James Island Weather Forecast

    • 57
    • 70

    Breezy

    • 55
    • 64

    Breezy

    • 58
    • 67

    Mostly Sunny

    • 52
    • 63

    Mostly Sunny

    • 52
    • 61

    Mostly Sunny

    • 52
    • 60

    Partly Sunny

Today 19 Oct Dorchester

Partly sunny and breezy. Highs in the mid 70s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 19 Oct Dorchester

Showers, breezy with Lows in the mid 50s. South Winds 15 to 20 Mph, becoming southwest after midnight. Gusts up to 35 Mph. Chance of rain 90 percent.

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Chesapeake Bay - James Island Temperature Statistics

October Temperature

Cambridge-Dorchester Airport (16.2 miles)

  • Lowest 10 October, 2025

    42.8 °F

  • Average October

    61.2 °F

  • Highest 6 October, 2025

    78.8 °F

Climate (2020–Present)

Cambridge-Dorchester Airport (16.2 miles)

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  • Average Low 2020–2025

    49.4 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    66.9 °F
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