Delaware River - Reedy Island Weather Forecast

    • 30
    • 42

    Decreasing Clouds

    • 30
    • 42

    Mostly Cloudy

    • 22
    • 34

    Partly Sunny

    • 33
    • 37

    Mostly Cloudy

    • 38
    • 47

    Chance Rain

    • 32
    • 43

    Chance Rain/Snow

Today 6 Dec New Castle

Partly sunny. A slight chance of drizzle late this morning. Not as cool with Highs in the lower 40s. West Winds around 5 Mph.

Tonight 6 Dec New Castle

Mostly clear. Cold with Lows in the mid 20s. West Winds around 5 Mph.

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Delaware River - Reedy Island Temperature Statistics

December Temperature

Wilmington, New Castle County Airport (11.2 miles)

  • Lowest 4 December, 2025

    28 °F

  • Average December

    36.4 °F

  • Highest 1 December, 2025

    45 °F

Climate (2020–Present)

Wilmington, New Castle County Airport (11.2 miles)

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  • Average Low 2020–2025

    48.1 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    66.6 °F
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