National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Light Rain Fog/Mist

39°F

4°C

Humidity 94%
Wind Speed SE 5 mph
Barometer 30.35 in (1028.1 mb)
Dewpoint 37°F (3°C)
Visibility 4.00 mi
Wind Chill35°F (2°C)
Last update 3 Apr 6:55 am EDT
Extended Forecast for

Portsmouth NH

  • Today

    Today: A 40 percent chance of showers, mainly before 11am. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 56. South wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Southwest wind around 5 mph.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a temperature rising to near 52 by 11am, then falling to around 43 during the remainder of the day. North wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

    High: 52 °F⇓

    Partly Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after midnight. Cloudy, with a low around 35. Southeast wind around 5 mph. Chance of precipitation is 70%.

    Low: 35 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers. High near 57. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 7pm. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.

    Low: 35 °F

    Showers
    Likely then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

Today
A 40 percent chance of showers, mainly before 11am. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 56. South wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Partly cloudy, with a low around 47. Southwest wind around 5 mph.
Saturday
Partly sunny, with a temperature rising to near 52 by 11am, then falling to around 43 during the remainder of the day. North wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Showers likely, mainly after midnight. Cloudy, with a low around 35. Southeast wind around 5 mph. Chance of precipitation is 70%.
Sunday
Showers. High near 57. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Sunday Night
Showers likely, mainly before 7pm. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
Mostly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.07°N 70.78°W (Elev. 33 ft)
Last Update:
2:25 am EDT Apr 3, 2026
Forecast Valid:
8am EDT Apr 3, 2026-6pm EDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation