New Castle Weather Forecast

    • 10
    • 29

    Increasing Clouds

    • 17
    • 26

    Chance Snow

    • 3
    • 27

    Snow Likely

    • 1
    • 17

    Mostly Sunny

    • 9
    • 23

    Mostly Sunny

    • 13
    • 28

    Mostly Cloudy

Today 5 Feb Coastal Rockingham

Mostly sunny. Highs in the upper 20s. Northwest Winds around 10 Mph this Morning, becoming light and variable.

Tonight 5 Feb Coastal Rockingham

Mostly clear in the Evening, then becoming partly cloudy. Lows around 9 above. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Castle Temperature Statistics

February Temperature

Pease Air Force Base / Portsmouth (5 miles)

  • Lowest 1 February, 2026

    4.8 °F

  • Average February

    19.5 °F

  • Highest 3 February, 2026

    33.8 °F

Climate (2021–Present)

Pease Air Force Base / Portsmouth (5 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    50.7 °F

  • Average High 2021–2026

    59.2 °F
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