New Castle Weather Forecast

    • 29
    • 44

    Rain Likely

    • 19
    • 37

    Partly Sunny

    • 20
    • 32

    Mostly Sunny

    • 22
    • 34

    Chance Snow

    • 14
    • 33

    Chance Snow

    • 14
    • 26

    Partly Sunny

Today 10 Dec Coastal Rockingham

Mostly cloudy. A slight chance of rain and snow in the Morning, then rain in the afternoon. Highs around 40. South Winds around 10 Mph with Gusts up to 25 Mph. Chance of precipitation 80 percent.

Tonight 10 Dec Coastal Rockingham

Cloudy with a 40 percent chance of snow. Lows in the lower 20s. Southwest Winds around 10 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Castle Temperature Statistics

December Temperature

Pease Air Force Base / Portsmouth (5 miles)

  • Lowest 5 December, 2025

    6.8 °F

  • Average December

    27.6 °F

  • Highest 1 December, 2025

    40.3 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (5 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    59.4 °F
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