Delaware River - Reedy Island Weather Forecast

    • 68
    • 82

    Increasing Clouds

    • 74
    • 84

    Mostly Sunny

    • 70
    • 86

    Rain Showers Likely

    • 63
    • 79

    Partly Sunny

    • 68
    • 81

    Chance Rain Showers

    • 69
    • 83

    Chance Rain Showers

Today 8 Sep New Castle

Mostly sunny. Highs in the lower 80s. West Winds around 5 Mph.

Tonight 8 Sep New Castle

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 60s. Southwest Winds around 5 Mph.

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Delaware River - Reedy Island Temperature Statistics

September Temperature

Wilmington, New Castle County Airport (11.2 miles)

  • Lowest 6 September, 2026

    61 °F

  • Average September

    77.7 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Wilmington, New Castle County Airport (11.2 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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