Wilmington Weather Forecast

    • 33
    • 38

    Gradual Clearing

    • 25
    • 47

    Increasing Clouds

    • 11
    • 39

    Mostly Cloudy

    • 12
    • 19

    Snow

    • 16
    • 22

    Snow

    • 8
    • 25

    Slight Chance Snow

    • 9
    • 22

    Partly Sunny

Today 21 Jan New Castle

Mostly sunny and not as cool. Near steady temperature in the upper 30s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 21 Jan New Castle

Mostly cloudy this Evening, then becoming partly cloudy. Not as cool. Near steady temperature in the mid 30s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Wilmington Temperature Statistics

January Temperature

Wilmington, New Castle County Airport (5.6 miles)

  • Lowest 19 January, 2026

    17.1 °F

  • Average January

    35.9 °F

  • Highest 7 January, 2026

    60.1 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (5.6 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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