Delaware Canal - Summit Harbor Weather Forecast

    • 29
    • 35

    Chance Snow

    • 30
    • 42

    Snow Likely

    • 18
    • 35

    Chance Snow

    • 12
    • 36

    Mostly Sunny

    • 11
    • 23

    Mostly Sunny

    • 26
    • 36

    Partly Sunny

    • 21
    • 42

    Mostly Cloudy

Today 16 Jan New Castle

Sunny. Near steady temperature in the mid 30s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 16 Jan New Castle

Partly cloudy this Evening, then mostly cloudy with a chance of snow after midnight. Cold with Lows in the upper 20s. South Winds 5 to 10 Mph. Chance of snow 40 percent.

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  • Temperature Real-Time

Delaware Canal - Summit Harbor Temperature Statistics

January Temperature

Wilmington, New Castle County Airport (10.6 miles)

  • Lowest 3 January, 2026

    21.9 °F

  • Average January

    37.6 °F

  • Highest 7 January, 2026

    60.1 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (10.6 miles)

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    57.3 °F

  • Average High 2021–2026

    66.5 °F
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