Delaware River - Delaware Memorial Bridge Weather Forecast

    • 27
    • 35

    Decreasing Clouds

    • 39
    • 44

    Rain

    • 29
    • 60

    Rain

    • 27
    • 35

    Partly Sunny

    • 28
    • 38

    Mostly Cloudy

    • 21
    • 37

    Mostly Cloudy

Today 27 Dec New Castle

Mostly cloudy. Near steady temperature in the lower 30s. North Winds 5 to 10 Mph.

Tonight 27 Dec New Castle

Mostly cloudy. Cold with Lows in the mid 20s. North Winds around 5 Mph.

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Delaware River - Delaware Memorial Bridge Temperature Statistics

December Temperature

Wilmington, New Castle County Airport (4.3 miles)

  • Lowest 16 December, 2025

    16 °F

  • Average December

    34.2 °F

  • Highest 19 December, 2025

    55.9 °F

Climate (2020–Present)

Wilmington, New Castle County Airport (4.3 miles)

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  • Average Low 2020–2025

    48.1 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    66.5 °F
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