New Castle Weather Forecast

    • 67
    • 78

    Increasing Clouds

    • 63
    • 75

    Chance Thunderstorms

    • 56
    • 76

    Mostly Sunny

    • 58
    • 74

    Mostly Sunny

    • 64
    • 78

    Mostly Sunny

    • 70
    • 84

    Slight Chance Rain Showers

    • 68
    • 86

    Chance Rain Showers

Today 19 Jul Coastal Rockingham

Sunny. Highs around 80. Southeast Winds around 10 Mph.

Tonight 19 Jul Coastal Rockingham

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 60s. South Winds around 10 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Castle Temperature Statistics

July Temperature

Pease Air Force Base / Portsmouth (5 miles)

  • Lowest 5 July, 2025

    55 °F

  • Average July

    75 °F

  • Highest 6 July, 2025

    95 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (5 miles)

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  • Average Low 2020–2025

    42.7 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    59.4 °F
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