Claymont Weather Forecast

    • 57
    • 74

    Mostly Sunny

    • 52
    • 76

    Increasing Clouds

    • 56
    • 75

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

    • 63
    • 84

    Mostly Sunny

    • 68
    • 89

    Partly Sunny

    • 68
    • 90

    Mostly Cloudy

Today 31 May New Castle

Sunny. Highs in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 31 May New Castle

Mostly clear. Lows in the mid 50s. Southwest Winds 5 to 10 Mph.

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Claymont Temperature Statistics

May Temperature

Wilmington, New Castle County Airport (11.2 miles)

  • Lowest 12 May, 2026

    39.7 °F

  • Average May

    65.1 °F

  • Highest 19 May, 2026

    96.7 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (11.2 miles)

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  • Average Low 2021–2026

    48 °F

  • Average 2021–2026

    57.3 °F

  • Average High 2021–2026

    66.6 °F
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