NWS Forecast for: Portsmouth NH
Issued by: National Weather Service Gray/Portland, ME
Last Update: 10:31 pm EDT Sep 22, 2023		Print

  • Overnight

    Overnight: Mostly cloudy, with a low around 51. Calm wind becoming east around 5 mph.

    Mostly Cloudy


    Low: 51 °F

  • Saturday

    Saturday: A 40 percent chance of showers, mainly after 3pm. Mostly cloudy, with a high near 64. East wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Mostly Cloudy
    then Chance
    Showers

    High: 64 °F

  • Saturday
    Night

    Saturday Night: A 40 percent chance of showers. Cloudy, with a low around 55. Northeast wind around 5 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Chance
    Showers

    Low: 55 °F

  • Sunday

    Sunday: A 30 percent chance of showers. Mostly cloudy, with a high near 66. Northeast wind around 5 mph.

    Chance
    Showers

    High: 66 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 53. Calm wind becoming northeast around 5 mph.

    Chance
    Showers

    Low: 53 °F

  • Monday

    Monday: Partly sunny, with a high near 66.

    Partly Sunny


    High: 66 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 51.

    Partly Cloudy


    Low: 51 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    Mostly Sunny


    High: 65 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Partly Cloudy


    Low: 48 °F



    • Overnight: Mostly cloudy, with a low around 51. Calm wind becoming east around 5 mph.

    Saturday: A 40 percent chance of showers, mainly after 3pm. Mostly cloudy, with a high near 64. East wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Saturday Night: A 40 percent chance of showers. Cloudy, with a low around 55. Northeast wind around 5 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Sunday: A 30 percent chance of showers. Mostly cloudy, with a high near 66. Northeast wind around 5 mph.

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 53. Calm wind becoming northeast around 5 mph.

    Monday: Partly sunny, with a high near 66.

    Monday Night: Partly cloudy, with a low around 51.

    Tuesday: Mostly sunny, with a high near 65.

    Tuesday Night: Partly cloudy, with a low around 48.

    Wednesday: Sunny, with a high near 68.

    Wednesday Night: Partly cloudy, with a low around 49.

    Thursday: Mostly sunny, with a high near 70.

    Thursday Night: Partly cloudy, with a low around 50.

    Friday: Mostly sunny, with a high near 69.


    Portsmouth NH
     43.07°N 70.78°W (Elev. 33 ft)

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