New Castle Weather Forecast

    • 22
    • 40

    Mostly Sunny

    • 31
    • 44

    Partly Sunny

    • 37
    • 47

    Rain Likely

    • 36
    • 49

    Rain

    • 33
    • 44

    Chance Rain/Snow

    • 31
    • 45

    Mostly Cloudy

Today 22 Jan New Castle

Sunny. Highs around 40. Northwest Winds around 5 Mph.

Tonight 22 Jan New Castle

Mostly clear. Lows in the lower 20s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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New Castle Temperature Statistics

January Temperature

Wilmington, New Castle County Airport (2.5 miles)

  • Lowest 9 January, 2020

    21 °F
  • Average January

    41.8 °F
  • Highest 12 January, 2020

    70 °F

Climate (2010–Present)

Wilmington, New Castle County Airport (2.5 miles)

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  • Average Low 2010–Present

    48.4 °F
  • Average 2010–Present

    56.7 °F
  • Average High 2010–Present

    65.2 °F
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