Claymont Weather Forecast

    • 65
    • 85

    Chance Thunderstorms

    • 67
    • 89

    Partly Sunny

    • 67
    • 89

    Mostly Cloudy

    • 60
    • 81

    Chance Rain Showers

    • 57
    • 77

    Chance Rain Showers

    • 45
    • 70

    Chance Rain Showers

Today 14 Apr New Castle

Mostly sunny. Hot with Highs in the mid 80s. Southwest Winds 10 to 15 Mph.

Tonight 14 Apr New Castle

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the mid 60s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Claymont Temperature Statistics

April Temperature

Wilmington, New Castle County Airport (11.2 miles)

  • Lowest 8 April, 2026

    30.7 °F

  • Average April

    55.2 °F

  • Highest 1 April, 2026

    85.6 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (11.2 miles)

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

  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    66.5 °F
Get WillyWeather+ to remove ads