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.

Partly Cloudy

24°F

-4°C

Humidity 39%
Wind Speed W 13 mph
Barometer 29.62 in (1003.4 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 2 Jan 4:55 pm EST
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Mostly clear, with a low around 13. West wind around 5 mph.

    Low: 13 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 27. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 27 °F

    Sunny

  • Saturday Night

    Saturday Night: Isolated snow showers between 1am and 2am, then a chance of snow after 2am. Increasing clouds, with a low around 16. Calm wind. Chance of precipitation is 40%.

    Low: 16 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 29. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 29 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 4. Northwest wind around 5 mph.

    Low: 4 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 20.

    High: 20 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Cloudy, with a low around 13.

    Low: 13 °F

    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow after 1am. Cloudy, with a low around 25.

    Low: 25 °F

    Cloudy then
    Chance Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 13. West wind around 5 mph.
Saturday
Sunny, with a high near 27. West wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Isolated snow showers between 1am and 2am, then a chance of snow after 2am. Increasing clouds, with a low around 16. Calm wind. Chance of precipitation is 40%.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 29. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 4. Northwest wind around 5 mph.
Monday
Mostly sunny, with a high near 20.
Monday Night
Cloudy, with a low around 13.
Tuesday
Mostly cloudy, with a high near 34.
Tuesday Night
A 40 percent chance of snow after 1am. Cloudy, with a low around 25.
Wednesday
A chance of snow before 10am, then a chance of rain between 10am and 11am. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.07°N 70.78°W (Elev. 33 ft)
Last Update:
12:48 pm EST Jan 2, 2026
Forecast Valid:
5pm EST Jan 2, 2026-6pm EST Jan 9, 2026
 
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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