New Castle Airport Weather Forecast

    • 41
    • 60

    Increasing Clouds

    • 54
    • 66

    Mostly Cloudy

    • 48
    • 72

    Rain Showers

    • 38
    • 60

    Mostly Sunny

    • 44
    • 63

    Mostly Sunny

    • 48
    • 71

    Mostly Cloudy

Today 14 Mar New Castle

Cloudy in the Morning, then becoming mostly sunny. Highs in the upper 50s. Northeast Winds around 5 Mph, becoming southeast in the afternoon.

Tonight 14 Mar New Castle

Mostly cloudy. Near steady temperature around 40. Northeast Winds around 5 Mph.

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New Castle Airport Temperature Statistics

March Temperature

Wilmington, New Castle County Airport (0 miles)

  • Lowest 2 March, 2025

    19.9 °F

  • Average March

    44.5 °F

  • Highest 11 March, 2025

    68 °F

Climate (2020–Present)

Wilmington, New Castle County Airport (0 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    66.2 °F
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