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

42°F

6°C

Humidity 61%
Wind Speed S 3 mph
Barometer 30.16 in (1021.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 30 Mar 6:55 am EDT
Extended Forecast for

Portsmouth NH

  • Today

    Today: Partly sunny, with a high near 62. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 62 °F

    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 5am. Mostly cloudy, with a low around 43. Southwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Partly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 8am. Mostly cloudy, with a high near 46. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 39. Northeast wind around 5 mph becoming south after midnight.

    Low: 39 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly cloudy, with a high near 64. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 64 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain and snow before 2pm, then a chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.

    High: 41 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 33. Chance of precipitation is 60%.

    Low: 33 °F

    Rain Likely

  • Friday

    Friday: Rain likely, mainly after 4pm. Cloudy, with a high near 50. Chance of precipitation is 60%.

    High: 50 °F

    Rain Likely

Detailed Forecast

Today
Partly sunny, with a high near 62. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of rain, mainly after 5am. Mostly cloudy, with a low around 43. Southwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely, mainly after 8am. Mostly cloudy, with a high near 46. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 39. Northeast wind around 5 mph becoming south after midnight.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 64. Southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
A chance of rain and snow before 2pm, then a chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.
Thursday Night
Rain likely. Cloudy, with a low around 33. Chance of precipitation is 60%.
Friday
Rain likely, mainly after 4pm. Cloudy, with a high near 50. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 38.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 50.
Saturday Night
A 50 percent chance of rain. Cloudy, with a low around 36.
Sunday
A 50 percent chance of rain. Cloudy, with a high near 55.
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:
6:16 am EDT Mar 30, 2026
Forecast Valid:
8am EDT Mar 30, 2026-6pm EDT Apr 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