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.

A Few Clouds

36°F

2°C

Humidity 41%
Wind Speed W 5 mph
Barometer 29.85 in (1011.2 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 26 Feb 5:55 pm EST
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Mostly cloudy during the evening, then clear overnight, with a low around 13. West wind around 5 mph becoming calm in the evening.

    Low: 13 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 37. Calm wind becoming south around 5 mph in the afternoon.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. South wind around 5 mph.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 46. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 46 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. Southwest wind around 5 mph becoming northwest after midnight.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of snow between 7am and 3pm. Partly sunny, with a high near 34. Chance of precipitation is 50%.

    High: 34 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy during the evening, then clear overnight, with a low around 13. West wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 37. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 25. South wind around 5 mph.
Saturday
Mostly sunny, with a high near 46. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 25. Southwest wind around 5 mph becoming northwest after midnight.
Sunday
A chance of snow between 7am and 3pm. Partly sunny, with a high near 34. Chance of precipitation is 50%.
Sunday Night
Mostly clear, with a low around 6.
Monday
Partly sunny, with a high near 26.
Monday Night
Mostly clear, with a low around 9.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 23.
Wednesday
A 30 percent chance of rain. Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.05°N 70.78°W (Elev. 49 ft)
Last Update:
1:24 pm EST Feb 26, 2026
Forecast Valid:
6pm EST Feb 26, 2026-6pm EST Mar 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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