Portsmouth Weather Forecast

    • 61
    • 86

    Chance Rain Showers

    • 59
    • 78

    Mostly Sunny

    • 65
    • 82

    Mostly Cloudy

    • 69
    • 90

    Partly Sunny

    • 68
    • 88

    Chance Rain Showers

    • 65
    • 81

    Rain Showers Likely

    • 63
    • 78

    Chance Rain Showers

Today 3 Jul Coastal Rockingham

Partly sunny with a chance of Showers with a slight chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail. Warm with Highs in the upper 80s. Southwest Winds around 10 Mph. Chance of rain 50 percent.

Tonight 3 Jul Coastal Rockingham

Partly cloudy with scattered Showers this Evening, then mostly clear after midnight. Lows in the lower 60s. Light and variable Winds. Chance of rain 40 percent.

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Portsmouth Temperature Statistics

July Temperature

Pease Air Force Base / Portsmouth (3.1 miles)

  • Lowest 1 July, 2025

    64.4 °F

  • Average July

    78.3 °F

  • Highest 1 July, 2025

    91.2 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (3.1 miles)

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  • Average Low 2020–2025

    42.7 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    59.3 °F
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