Trinity Vicinity Weather Forecast

    • 73
    • 90

    Chance Rain Showers

    • 67
    • 89

    Chance Rain Showers

    • 61
    • 82

    Mostly Sunny

    • 58
    • 78

    Mostly Sunny

    • 61
    • 80

    Partly Sunny

    • 63
    • 83

    Partly Sunny

Today 3 Sep New Castle

Mostly cloudy with Showers likely with a chance of Thunderstorms this Morning, then partly sunny with a slight chance of Showers and Thunderstorms this afternoon. Locally heavy rainfall possible this morning. Warmer with Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 3 Sep New Castle

Mostly cloudy with a chance of Showers. A chance of Thunderstorms, mainly in the evening. Humid with Lows in the lower 70s. West Winds around 5 Mph. Chance of rain 40 percent.

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Trinity Vicinity Temperature Statistics

September Temperature

Wilmington, New Castle County Airport (5.6 miles)

  • Lowest 1 September, 2026

    71.1 °F

  • Average September

    80 °F

  • Highest 1 September, 2026

    91.9 °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

    57.3 °F

  • Average High 2021–2026

    66.7 °F
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