New Castle Weather Forecast

    • 53
    • 70

    Partly Sunny

    • 61
    • 74

    Partly Sunny

    • 64
    • 74

    Rain

    • 55
    • 69

    Rain

    • 46
    • 66

    Partly Sunny

    • 45
    • 61

    Partly Sunny

    • 43
    • 61

    Slight Chance Rain

Today 3 Nov New Castle

Sunny. Highs in the lower 60s.

Tonight 3 Nov New Castle

Partly cloudy this Evening, then becoming mostly clear. Patchy fog after midnight. Lows around 50. South Winds around 5 Mph.

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New Castle Temperature Statistics

November Temperature

Wilmington, New Castle County Airport (1.9 miles)

  • Lowest 1 November, 2026

    39 °F

  • Average November

    50 °F

  • Highest 1 November, 2026

    62.1 °F

Climate (2021–2026)

Wilmington, New Castle County Airport (1.9 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    57.3 °F

  • Average High 2021–2026

    66.8 °F
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