Spring Valley Weather Forecast

    • 27
    • 43

    Decreasing Clouds

    • 25
    • 42

    Mostly Cloudy

    • 18
    • 33

    Partly Sunny

    • 28
    • 35

    Mostly Cloudy

    • 33
    • 45

    Chance Rain

    • 28
    • 43

    Chance Rain

Today 6 Dec New Castle

Mostly cloudy. Not as cool with Highs in the lower 40s. West Winds around 5 Mph.

Tonight 6 Dec New Castle

Partly cloudy in the Evening, then clearing. Cold with Lows in the upper 20s. West Winds around 5 Mph.

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Spring Valley Temperature Statistics

December Temperature

Wilmington, New Castle County Airport (6.8 miles)

  • Lowest 2 December, 2025

    28.9 °F

  • Average December

    37 °F

  • Highest 1 December, 2025

    45 °F

Climate (2020–Present)

Wilmington, New Castle County Airport (6.8 miles)

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  • Average Low 2020–2025

    48.1 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    66.6 °F
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