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.

Fair

27°F

-3°C

Humidity 58%
Wind Speed SW 5 mph
Barometer 30.47 in (1032.2 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 29 Mar 3:55 am EDT
Extended Forecast for

Portsmouth NH

  • Today

    Today: Increasing clouds, with a high near 48. Southwest wind 5 to 10 mph.

    High: 48 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 34. Southwest wind around 5 mph.

    Low: 34 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43. Southwest wind around 5 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of rain after 7am. Mostly cloudy, with a high near 58. Southeast wind 5 to 10 mph.

    High: 58 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain. Mostly cloudy, with a high near 67.

    High: 67 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain before 5am. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Thursday

    Thursday: A chance of snow before 11am, then a chance of rain and snow between 11am and 2pm, then a chance of snow after 2pm. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.

    High: 42 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Increasing clouds, with a high near 48. Southwest wind 5 to 10 mph.
Tonight
Increasing clouds, with a low around 34. Southwest wind around 5 mph.
Monday
Mostly cloudy, with a high near 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 43. Southwest wind around 5 mph.
Tuesday
A 50 percent chance of rain after 7am. Mostly cloudy, with a high near 58. Southeast wind 5 to 10 mph.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 42.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 67.
Wednesday Night
A 50 percent chance of rain before 5am. Mostly cloudy, with a low around 32.
Thursday
A chance of snow before 11am, then a chance of rain and snow between 11am and 2pm, then a chance of snow after 2pm. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 31.
Friday
A chance of rain and snow. Cloudy, with a high near 39. Chance of precipitation is 50%.
Friday Night
Rain and snow likely. Cloudy, with a low around 31. Chance of precipitation is 60%.
Saturday
A 30 percent chance of rain. Cloudy, with a high near 43.
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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:
2:27 am EDT Mar 29, 2026
Forecast Valid:
4am EDT Mar 29, 2026-6pm EDT Apr 4, 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