Portsmouth Weather Forecast

    • 33
    • 41

    Rain/Snow

    • 30
    • 49

    Partly Sunny

    • 29
    • 45

    Chance Rain Showers

    • 30
    • 46

    Slight Chance Rain Showers

    • 27
    • 48

    Mostly Cloudy

    • 29
    • 43

    Mostly Cloudy

Today 24 Mar Coastal Rockingham

Snow and rain. Little or no snow accumulation. Highs in the lower 40s. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation near 100 percent.

Tonight 24 Mar Coastal Rockingham

Mostly cloudy with a chance of rain Showers in the Evening, then partly cloudy after midnight. Lows in the lower 30s. Northwest Winds around 10 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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Portsmouth Temperature Statistics

March Temperature

Pease Air Force Base / Portsmouth (3.1 miles)

  • Lowest 3 March, 2025

    8.1 °F

  • Average March

    39.7 °F

  • Highest 16 March, 2025

    65.1 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (3.1 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    59.3 °F
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