Delaware Canal - Summit Harbor Weather Forecast

    • 7
    • 28

    Becoming Sunny

    • 7
    • 23

    Mostly Sunny

    • 6
    • 20

    Partly Sunny

    • 1
    • 19

    Mostly Sunny

    • 3
    • 17

    Partly Sunny

    • 11
    • 21

    Chance Snow

    • 13
    • 26

    Slight Chance Snow

Today 26 Jan New Castle

Partly sunny and cold. Near steady temperature in the mid 20s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 26 Jan New Castle

Mostly clear. Colder with Lows around 7 above. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Wind chill Values as low as 5 below.

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Delaware Canal - Summit Harbor Temperature Statistics

January Temperature

Wilmington, New Castle County Airport (10.6 miles)

  • Lowest 21 January, 2026

    9.6 °F

  • Average January

    34.5 °F

  • Highest 7 January, 2026

    61.6 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (10.6 miles)

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  • Average Low 2021–2026

    48 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    66.5 °F
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