Delaware Canal - Summit Harbor Weather Forecast

    • 60
    • 67

    Rain Showers

    • 61
    • 76

    Rain Showers Likely

    • 61
    • 77

    Chance Rain Showers

    • 63
    • 81

    Chance Rain Showers

    • 58
    • 81

    Slight Chance Rain Showers

    • 54
    • 75

    Partly Sunny

Today 24 May New Castle

A slight chance of Thunderstorms. Rain in the Morning, then Showers likely in the afternoon. Much warmer with Highs around 70. East Winds 5 to 10 Mph. Chance of rain near 100 percent.

Tonight 24 May New Castle

Showers likely. Lows in the upper 50s. Northeast Winds around 5 Mph. Chance of rain 70 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Delaware Canal - Summit Harbor Temperature Statistics

May Temperature

Wilmington, New Castle County Airport (10.6 miles)

  • Lowest 12 May, 2026

    39.7 °F

  • Average May

    64.8 °F

  • Highest 19 May, 2026

    96.7 °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