Swallow Hill Weather Forecast

    • 31
    • 52

    Rain Showers Likely

    • 34
    • 49

    Mostly Sunny

    • 43
    • 56

    Mostly Cloudy

    • 49
    • 66

    Rain Likely

    • 28
    • 58

    Slight Chance Rain/Snow

    • 29
    • 45

    Mostly Sunny

Today 23 Mar New Castle

Mostly cloudy. Showers with a slight chance of Thunderstorms this Morning, then a chance of Showers this afternoon. Much cooler with Highs in the lower 50s. North Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 80 percent.

Tonight 23 Mar New Castle

Mostly clear. Much Colder with Lows in the lower 30s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Swallow Hill Temperature Statistics

March Temperature

Wilmington, New Castle County Airport (8.1 miles)

  • Lowest 18 March, 2026

    24.7 °F

  • Average March

    46.7 °F

  • Highest 10 March, 2026

    83.6 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (8.1 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    66.5 °F
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