Cape Henlopen State Park Weather Forecast

    • 65
    • 73

    Rain Showers

    • 65
    • 76

    Rain Showers Likely

    • 64
    • 78

    Chance Rain Showers

    • 64
    • 83

    Mostly Sunny

    • 63
    • 74

    Partly Sunny

    • 63
    • 74

    Partly Sunny

    • 64
    • 77

    Partly Sunny

Today 16 Sep Delaware Beaches

Showers with a chance of Thunderstorms. Windy. Near steady temperature in the upper 60s. Northeast Winds 20 to 30 Mph with Gusts up to 40 Mph. Chance of rain 80 percent.

Tonight 16 Sep Delaware Beaches

Showers with a chance of Thunderstorms. Windy. Near steady temperature in the upper 60s. Northeast Winds 20 to 30 Mph. Gusts up to 45 Mph this evening. Chance of rain 90 percent.

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Cape Henlopen State Park Temperature Statistics

September Temperature

Georgetown - Delaware Coastal Airport (14.9 miles)

  • Lowest 9 September, 2025

    52 °F

  • Average September

    68.2 °F

  • Highest 6 September, 2025

    91.9 °F

Climate (2020–Present)

Georgetown - Delaware Coastal Airport (14.9 miles)

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  • Average Low 2020–2025

    49.3 °F

  • Average 2020–2025

    58.8 °F

  • Average High 2020–2025

    68.5 °F
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