Delaware Canal - Summit Harbor Weather Forecast

    • 46
    • 56

    Rain

    • 31
    • 55

    Chance Rain

    • 35
    • 53

    Mostly Sunny

    • 39
    • 56

    Mostly Cloudy

    • 51
    • 58

    Rain Likely

    • 42
    • 63

    Chance Rain

Today 21 Nov New Castle

Patchy fog this morning. Cloudy. Highs in the mid 50s. Southwest Winds around 5 Mph.

Tonight 21 Nov New Castle

Rain. Lows in the mid 40s. West Winds around 5 Mph, becoming north after midnight. Chance of rain 90 percent.

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Delaware Canal - Summit Harbor Temperature Statistics

November Temperature

Wilmington, New Castle County Airport (10.6 miles)

  • Lowest 11 November, 2025

    30 °F

  • Average November

    49 °F

  • Highest 8 November, 2025

    70 °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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