Brookside Weather Forecast

    • 72
    • 85

    Increasing Clouds

    • 67
    • 86

    Chance Rain Showers

    • 61
    • 81

    Partly Sunny

    • 68
    • 81

    Rain Showers Likely

    • 68
    • 83

    Chance Rain Showers

    • 65
    • 83

    Partly Sunny

    • 69
    • 84

    Mostly Sunny

Today 9 Sep New Castle

Mostly sunny. Hot. Near steady temperature in the mid 80s. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 9 Sep New Castle

Mostly clear this Evening, then becoming partly cloudy. Lows in the lower 70s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Brookside Temperature Statistics

September Temperature

Wilmington, New Castle County Airport (6.2 miles)

  • Lowest 6 September, 2026

    60.7 °F

  • Average September

    76.9 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Wilmington, New Castle County Airport (6.2 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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