Delaware River - Port Penn Weather Forecast

    • 44
    • 61

    Breezy

    • 41
    • 60

    Partly Sunny

    • 44
    • 61

    Partly Sunny

    • 45
    • 60

    Partly Sunny

    • 41
    • 60

    Mostly Sunny

    • 47
    • 62

    Slight Chance Rain Showers

    • 39
    • 58

    Partly Sunny

Today 31 Oct New Castle

Partly sunny and Breezy, cooler with Highs in the upper 50s. West Winds 20 to 25 Mph with Gusts up to 45 Mph.

Tonight 31 Oct New Castle

Clear. Lows in the mid 40s. West Winds 15 to 20 Mph. Gusts up to 40 Mph, decreasing to 30 Mph after midnight.

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Delaware River - Port Penn Temperature Statistics

October Temperature

Wilmington, New Castle County Airport (10.6 miles)

  • Lowest 26 October, 2025

    36 °F

  • Average October

    58.4 °F

  • Highest 7 October, 2025

    80.6 °F

Climate (2020–Present)

Wilmington, New Castle County Airport (10.6 miles)

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  • Average Low 2020–2025

    48.2 °F

  • Average 2020–2025

    57.4 °F

  • Average High 2020–2025

    66.6 °F
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