Chesapeake Bay - Spring Island Weather Forecast

    • 70
    • 77

    Rain Showers Likely

    • 67
    • 73

    Rain Likely

    • 65
    • 70

    Chance Rain

    • 62
    • 69

    Chance Rain Showers

    • 63
    • 68

    Chance Rain Showers

    • 64
    • 69

    Partly Sunny

Today 21 Sep Dorchester

Mostly cloudy. Highs in the upper 70s. Northeast Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon.

Tonight 21 Sep Dorchester

Cloudy. A slight chance of Showers in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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Chesapeake Bay - Spring Island Temperature Statistics

September Temperature

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (19.3 miles)

  • Lowest 16 September, 2026

    59 °F

  • Average September

    76.5 °F

  • Highest 1 September, 2026

    91.9 °F

Climate (2021–2026)

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (19.3 miles)

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  • Average Low 2021–2026

    51.8 °F

  • Average 2021–2026

    60.3 °F

  • Average High 2021–2026

    68.6 °F
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