Delaware City Weather Forecast

    • 56
    • 76

    Mostly Sunny

    • 59
    • 75

    Mostly Sunny

    • 53
    • 67

    Mostly Sunny

    • 57
    • 69

    Mostly Sunny

    • 57
    • 71

    Mostly Sunny

    • 56
    • 70

    Chance Rain Showers

    • 57
    • 69

    Slight Chance Rain Showers

Today 28 May New Castle

Sunny. Highs in the upper 70s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 28 May New Castle

Clear. Lows in the mid 50s. North Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming northwest around 5 Mph after midnight.

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  • Temperature Real-Time

Delaware City Temperature Statistics

May Temperature

Wilmington, New Castle County Airport (6.2 miles)

  • Lowest 12 May, 2026

    39.7 °F

  • Average May

    64.4 °F

  • Highest 19 May, 2026

    96.7 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (6.2 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    66.6 °F
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