Highlands Weather Forecast

    • 53
    • 74

    Becoming Sunny

    • 53
    • 74

    Mostly Sunny

    • 56
    • 76

    Partly Sunny

    • 55
    • 73

    Partly Sunny

    • 58
    • 80

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

Today 7 Sep New Castle

Mostly cloudy. A chance of Showers late this Morning, then a slight chance of Showers this afternoon. Not as warm with Highs in the mid 70s. Northwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 7 Sep New Castle

Mostly clear. Lows in the lower 50s. Northwest Winds around 5 Mph.

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Highlands Temperature Statistics

September Temperature

Wilmington, New Castle County Airport (6.2 miles)

  • Lowest 1 September, 2025

    55 °F

  • Average September

    71 °F

  • Highest 5 September, 2025

    86 °F

Climate (2020–Present)

Wilmington, New Castle County Airport (6.2 miles)

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  • Average Low 2020–2025

    48.1 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    66.5 °F
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