Delaware River - Port Penn Weather Forecast

    • 63
    • 84

    Mostly Sunny

    • 65
    • 83

    Chance Rain Showers

    • 68
    • 88

    Rain Showers

    • 63
    • 81

    Mostly Sunny

    • 64
    • 83

    Partly Sunny

    • 65
    • 84

    Chance Thunderstorms

    • 66
    • 85

    Chance Thunderstorms

Today 20 Jun New Castle

Sunny. Highs in the mid 80s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 20 Jun New Castle

Partly cloudy this Evening, then clearing. Lows in the lower 60s. West Winds 10 to 15 Mph with Gusts up to 25 Mph, Diminishing to around 5 Mph after midnight.

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Delaware River - Port Penn Temperature Statistics

June Temperature

Wilmington, New Castle County Airport (10.6 miles)

  • Lowest 2 June, 2026

    47.6 °F

  • Average June

    74.1 °F

  • Highest 12 June, 2026

    97.6 °F

Climate (2021–2026)

Wilmington, New Castle County Airport (10.6 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.3 °F

  • Average High 2021–2026

    66.6 °F
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