Beach Plum Island Weather Forecast

    • 31
    • 49

    Chance Rain

    • 27
    • 40

    Mostly Sunny

    • 28
    • 39

    Slight Chance Snow

    • 31
    • 45

    Chance Snow

    • 20
    • 33

    Slight Chance Snow

    • 23
    • 33

    Partly Sunny

    • 28
    • 39

    Partly Sunny

Today 10 Dec Inland Sussex

Mostly sunny this Morning, then mostly cloudy with a slight chance of rain this afternoon. Highs in the upper 40s. Southwest Winds 10 to 15 Mph with Gusts up to 35 Mph. Chance of rain 20 percent.

Tonight 10 Dec Inland Sussex

Mostly cloudy with a slight chance of rain this Evening, then partly cloudy after midnight. Cold with Lows around 30. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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Beach Plum Island Temperature Statistics

December Temperature

Georgetown - Delaware Coastal Airport (12.4 miles)

  • Lowest 8 December, 2025

    28 °F

  • Average December

    34.3 °F

  • Highest 1 December, 2025

    43 °F

Climate (2020–Present)

Georgetown - Delaware Coastal Airport (12.4 miles)

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  • Average Low 2020–2025

    49.3 °F

  • Average 2020–2025

    58.8 °F

  • Average High 2020–2025

    68.4 °F
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