Portsmouth Weather Forecast

    • 31
    • 44

    Rain Likely

    • 15
    • 39

    Snow

    • 7
    • 23

    Partly Sunny

    • 4
    • 17

    Partly Sunny

    • 5
    • 18

    Partly Sunny

    • 14
    • 25

    Partly Sunny

Today 18 Jan Coastal Rockingham

Cloudy. Rain likely in the afternoon. Highs in the mid 40s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 18 Jan Coastal Rockingham

Mostly cloudy. Rain likely in the Evening, then isolated rain Showers after midnight. Lows in the lower 30s. South Winds around 10 Mph with Gusts up to 25 Mph in the Evening, becoming light and variable. Chance of rain 70 percent.

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Portsmouth Temperature Statistics

January Temperature

Pease Air Force Base / Portsmouth (3.1 miles)

  • Lowest 6 January, 2025

    13.3 °F

  • Average January

    27 °F

  • Highest 1 January, 2025

    44.8 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (3.1 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    59.4 °F
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