Swallow Hill Weather Forecast

    • 66
    • 84

    Rain Showers

    • 60
    • 79

    Chance Rain Showers

    • 62
    • 83

    Mostly Sunny

    • 65
    • 86

    Chance Thunderstorms

    • 66
    • 86

    Chance Thunderstorms

    • 67
    • 86

    Slight Chance Thunderstorms

Today 22 Jun New Castle

Partly sunny in the Morning, then mostly cloudy with Showers likely with a chance of Thunderstorms in the afternoon. Some Thunderstorms may produce damaging Winds in the afternoon. Hot with Highs in the upper 80s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming south 10 to 15 Mph with Gusts up to 30 Mph in the afternoon. Chance of rain 60 percent.

Tonight 22 Jun New Castle

Mostly cloudy with a 20 percent chance of Showers. Near steady temperature in the upper 60s. East Winds around 5 Mph.

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  • Temperature Real-Time

Swallow Hill Temperature Statistics

June Temperature

Wilmington, New Castle County Airport (8.1 miles)

  • Lowest 2 June, 2026

    47.6 °F
  • Average June

    74.3 °F
  • Highest 12 June, 2026

    97.6 °F

Climate (2021–2026)

Wilmington, New Castle County Airport (8.1 miles)

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  • Average Low 2021–2026

    47.9 °F
  • Average 2021–2026

    57.3 °F
  • Average High 2021–2026

    66.6 °F
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