Cornish Hills Weather Forecast

    • 68
    • 88

    Chance Thunderstorms

    • 68
    • 85

    Chance Rain Showers

    • 69
    • 87

    Chance Rain Showers

    • 62
    • 84

    Mostly Sunny

    • 62
    • 82

    Partly Sunny

    • 67
    • 83

    Chance Thunderstorms

Today 11 Aug New Castle

Mostly sunny. A chance of Showers and Thunderstorms this afternoon. Hot with Highs in the upper 80s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 11 Aug New Castle

Mostly cloudy with a chance of Showers. A chance of Thunderstorms, mainly in the evening. Humid with Lows in the upper 60s. West Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornish Hills Temperature Statistics

August Temperature

Wilmington, New Castle County Airport (8.1 miles)

  • Lowest 4 August, 2026

    66.7 °F

  • Average August

    81 °F

  • Highest 7 August, 2026

    93.7 °F

Climate (2021–2026)

Wilmington, New Castle County Airport (8.1 miles)

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  • Average Low 2021–2026

    48 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    66.7 °F
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