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

33°F

1°C

Humidity 59%
Wind Speed W 6 mph
Barometer 30.23 in (1024.0 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 25 Mar 3:55 am EDT
Extended Forecast for

Portsmouth NH

  • Today

    Today: Mostly sunny, with a high near 50. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 50 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of rain before 1am, then a slight chance of rain after 2am. Increasing clouds, with a low around 35. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain. Mostly cloudy, with a high near 59. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain. Low around 38. Southwest wind around 5 mph. Chance of precipitation is 80%.

    Low: 38 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 7am. Partly sunny, with a high near 45. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 36.

    High: 36 °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 43.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 50. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
A slight chance of rain before 1am, then a slight chance of rain after 2am. Increasing clouds, with a low around 35. South wind around 5 mph. Chance of precipitation is 20%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 59. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain. Low around 38. Southwest wind around 5 mph. Chance of precipitation is 80%.
Friday
Rain likely, mainly before 7am. Partly sunny, with a high near 45. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 19.
Saturday
Mostly sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 51.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Mostly cloudy, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.07°N 70.78°W (Elev. 33 ft)
Last Update:
3:44 am EDT Mar 25, 2026
Forecast Valid:
4am EDT Mar 25, 2026-6pm EDT Mar 31, 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