Portsmouth Weather Forecast

    • 64
    • 76

    Mostly Sunny

    • 69
    • 88

    Slight Chance Thunderstorms

    • 66
    • 86

    Rain Showers Likely

    • 63
    • 81

    Mostly Sunny

    • 64
    • 81

    Mostly Sunny

    • 68
    • 88

    Slight Chance Thunderstorms

    • 71
    • 91

    Partly Sunny

Today 8 Jul Coastal Rockingham

Mostly sunny. Near steady temperature in the mid 70s. Light and variable Winds.

Tonight 8 Jul Coastal Rockingham

Mostly clear. Lows in the mid 60s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portsmouth Temperature Statistics

July Temperature

Pease Air Force Base / Portsmouth (3.1 miles)

  • Lowest 5 July, 2026

    64 °F

  • Average July

    79.6 °F

  • Highest 2 July, 2026

    95.9 °F

Climate (2021–2026)

Pease Air Force Base / Portsmouth (3.1 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    59.1 °F
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