Delaware River - Augustine Beach Weather Forecast

    • 63
    • 71

    Rain Showers Likely

    • 62
    • 78

    Partly Sunny

    • 59
    • 82

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

    • 58
    • 75

    Partly Sunny

    • 62
    • 77

    Partly Sunny

Today 17 Sep New Castle

Showers likely. A chance of Thunderstorms, mainly in the morning. Humid with Highs in the lower 70s. Northeast Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 17 Sep New Castle

Showers likely with a chance of Thunderstorms. Near steady temperature in the lower 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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Delaware River - Augustine Beach Temperature Statistics

September Temperature

Wilmington, New Castle County Airport (11.2 miles)

  • Lowest 9 September, 2025

    53.1 °F

  • Average September

    70.2 °F

  • Highest 6 September, 2025

    91 °F

Climate (2020–Present)

Wilmington, New Castle County Airport (11.2 miles)

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  • Average Low 2020–2025

    48.1 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    66.6 °F
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