The Flats Weather Forecast

    • 51
    • 79

    Chance Rain Showers

    • 45
    • 66

    Partly Sunny

    • 50
    • 68

    Mostly Sunny

    • 53
    • 70

    Rain Showers

    • 50
    • 69

    Slight Chance Rain Showers

    • 54
    • 72

    Partly Sunny

    • 58
    • 78

    Partly Sunny

Today 10 May New Castle

Mostly sunny with a slight chance of Showers and Thunderstorms. Warmer with Highs around 80. West Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 10 May New Castle

A chance of Thunderstorms this evening. Mostly cloudy with a chance of Showers. Lows in the lower 50s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

The Flats Temperature Statistics

May Temperature

Wilmington, New Castle County Airport (5.6 miles)

  • Lowest 1 May, 2026

    42.7 °F

  • Average May

    60.7 °F

  • Highest 5 May, 2026

    84.7 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (5.6 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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