Delaware River - Port Penn Weather Forecast

    • 44
    • 58

    Rain

    • 42
    • 55

    Mostly Cloudy

    • 44
    • 67

    Mostly Sunny

    • 48
    • 65

    Chance Rain Showers

    • 50
    • 65

    Rain Showers Likely

    • 44
    • 61

    Slight Chance Rain Showers

    • 43
    • 62

    Chance Rain Showers

Today 25 Apr New Castle

Mostly cloudy with a 50 percent chance of rain. Much cooler with Highs in the upper 50s. Temperature falling into the lower 50s this afternoon. East Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 25 Apr New Castle

Rain with a slight chance of Thunderstorms. Lows in the lower 40s. East Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Delaware River - Port Penn Temperature Statistics

April Temperature

Wilmington, New Castle County Airport (10.6 miles)

  • Lowest 8 April, 2026

    30.7 °F

  • Average April

    60.1 °F

  • Highest 15 April, 2026

    90.6 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (10.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    48 °F

  • Average 2021–2026

    57.3 °F

  • Average High 2021–2026

    66.6 °F
Get WillyWeather+ to remove ads