Beach Plum Island Weather Forecast

    • 39
    • 55

    Rain

    • 30
    • 46

    Chance Rain

    • 31
    • 43

    Mostly Sunny

    • 37
    • 47

    Partly Sunny

    • 33
    • 49

    Mostly Cloudy

    • 24
    • 42

    Chance Rain/Snow

Today 10 Jan Inland Sussex

Rain. Highs in the upper 50s. Northeast Winds 5 to 10 Mph, becoming east in the afternoon. Chance of rain near 100 percent.

Tonight 10 Jan Inland Sussex

Rain. Lows in the lower 40s. Southwest Winds 5 to 10 Mph, becoming west after midnight. Chance of rain near 100 percent.

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Beach Plum Island Temperature Statistics

January Temperature

Georgetown - Delaware Coastal Airport (12.4 miles)

  • Lowest 3 January, 2026

    19.9 °F

  • Average January

    34.8 °F

  • Highest 7 January, 2026

    62.1 °F

Climate (2021–Present)

Georgetown - Delaware Coastal Airport (12.4 miles)

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  • Average Low 2021–2026

    49.1 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    68.3 °F
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