New Castle Weather Forecast

    • 38
    • 48

    Mostly Cloudy

    • 31
    • 55

    Partly Sunny

    • 28
    • 46

    Mostly Sunny

    • 39
    • 47

    Chance Rain

    • 36
    • 54

    Slight Chance Rain

    • 36
    • 51

    Partly Sunny

Today 19 Mar New Castle

Sunny in the Morning, then becoming partly sunny. Highs in the upper 40s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 19 Mar New Castle

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the upper 30s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Castle Temperature Statistics

March Temperature

Wilmington, New Castle County Airport (1.9 miles)

  • Lowest 1 March, 2024

    23.8 °F
  • Average March

    50.3 °F
  • Highest 14 March, 2024

    77.6 °F

Climate (2019–Present)

Wilmington, New Castle County Airport (1.9 miles)

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  • Average Low 2019–2024

    48.4 °F
  • Average 2019–2024

    57.2 °F
  • Average High 2019–2024

    66.3 °F
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