Hoopes Reservoir Weather Forecast

    • 67
    • 86

    Chance Rain Showers

    • 61
    • 79

    Partly Sunny

    • 66
    • 79

    Rain Showers Likely

    • 66
    • 82

    Slight Chance Thunderstorms

    • 62
    • 81

    Partly Sunny

    • 67
    • 82

    Partly Sunny

Today 10 Sep New Castle

Mostly cloudy this Morning, then becoming partly sunny. Hot with Highs in the mid 80s. West Winds 5 to 10 Mph.

Tonight 10 Sep New Castle

Mostly cloudy. A chance of Showers in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Humid with Lows in the upper 60s. Northwest Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Real-Time

Hoopes Reservoir Temperature Statistics

September Temperature

Wilmington, New Castle County Airport (7.5 miles)

  • Lowest 8 September, 2026

    55.9 °F

  • Average September

    76.5 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Wilmington, New Castle County Airport (7.5 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    66.7 °F
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