Trinity Vicinity Weather Forecast

    • 69
    • 81

    Rain Showers

    • 68
    • 84

    Chance Rain Showers

    • 55
    • 76

    Mostly Sunny

    • 58
    • 77

    Mostly Sunny

    • 62
    • 82

    Partly Sunny

    • 65
    • 84

    Chance Rain Showers

Today 12 Sep New Castle

Partly sunny. Highs around 80. Southeast Winds 5 to 10 Mph.

Tonight 12 Sep New Castle

Cloudy. A slight chance of Showers and Thunderstorms in the Evening, then Showers with a chance of Thunderstorms after midnight. Patchy fog after midnight. Locally heavy rainfall possible after midnight. Warmer with Lows around 70. Southeast Winds 5 to 10 Mph. Chance of rain 90 percent.

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Trinity Vicinity Temperature Statistics

September Temperature

Wilmington, New Castle County Airport (5.6 miles)

  • Lowest 8 September, 2026

    56.6 °F

  • Average September

    76.8 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Wilmington, New Castle County Airport (5.6 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    66.8 °F
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