Delaware River - Bay View Beach Weather Forecast

    • 58
    • 72

    Partly Sunny

    • 58
    • 65

    Chance Rain Showers

    • 62
    • 64

    Slight Chance Rain Showers

    • 61
    • 68

    Partly Sunny

    • 61
    • 74

    Partly Sunny

    • 62
    • 77

    Partly Sunny

Today 25 Sep New Castle

Partly sunny. Highs in the upper 70s.

Tonight 25 Sep New Castle

Mostly cloudy. A slight chance of rain this Evening, then a chance of rain after midnight. Lows in the upper 50s. North Winds 15 to 20 Mph. Gusts up to 35 Mph, increasing to 45 Mph after midnight. Chance of rain 50 percent.

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Delaware River - Bay View Beach Temperature Statistics

September Temperature

Wilmington, New Castle County Airport (12.4 miles)

  • Lowest 15 September, 2026

    52.6 °F

  • Average September

    73.3 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Wilmington, New Castle County Airport (12.4 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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