Claymont Weather Forecast

    • 52
    • 68

    Increasing Clouds

    • 53
    • 73

    Rain Showers

    • 51
    • 67

    Chance Rain Showers

    • 53
    • 69

    Partly Sunny

    • 60
    • 77

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

Today 12 May New Castle

Sunny. Highs in the upper 60s. North Winds 5 to 10 Mph, becoming northwest in the afternoon.

Tonight 12 May New Castle

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 50s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Claymont Temperature Statistics

May Temperature

Wilmington, New Castle County Airport (11.2 miles)

  • Lowest 1 May, 2026

    42.7 °F

  • Average May

    60.5 °F

  • Highest 5 May, 2026

    84.7 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (11.2 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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