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.

Overcast

46°F

8°C

Humidity 88%
Wind Speed SW 5 mph
Barometer 29.88 in (1012.1 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 26 Mar 9:55 am EDT
Extended Forecast for

Portsmouth NH

  • Today

    Today: Partly sunny, with a high near 62. Southwest wind around 10 mph, with gusts as high as 25 mph.

    High: 62 °F

    Partly Sunny

  • Tonight

    Tonight: Rain, mainly before 5am. Low around 38. Southwest wind around 5 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain then
    Rain Likely

  • Friday

    Friday: A slight chance of showers before 11am, then a slight chance of rain between 11am and noon. Partly sunny, with a high near 44. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21. North wind around 5 mph.

    Low: 21 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 35. North wind around 5 mph.

    High: 35 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 62. Southwest wind around 10 mph, with gusts as high as 25 mph.
Tonight
Rain, mainly before 5am. Low around 38. Southwest wind around 5 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A slight chance of showers before 11am, then a slight chance of rain between 11am and noon. Partly sunny, with a high near 44. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 21. North wind around 5 mph.
Saturday
Mostly sunny, with a high near 35. North wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly cloudy, with a high near 54.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 48.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 31.
Wednesday
A chance of rain and snow. Cloudy, with a high near 43. Chance of precipitation is 50%.
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:
6:02 am EDT Mar 26, 2026
Forecast Valid:
11am EDT Mar 26, 2026-6pm EDT Apr 1, 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