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

47°F

8°C

Humidity 51%
Wind Speed W 3 mph
Barometer 29.85 in (1011.1 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 8 Nov 7:55 pm EST
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Increasing clouds, with a low around 35. Northwest wind around 5 mph becoming calm.

    Low: 35 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Isolated showers between 3pm and 4pm, then a chance of rain after 4pm. Increasing clouds, with a high near 51. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Partly Sunny
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 45. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Rain

  • Monday

    Monday: Showers likely. Cloudy, with a high near 55. Northwest wind around 5 mph. Chance of precipitation is 70%.

    High: 55 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 30. West wind around 5 mph. Chance of precipitation is 60%.

    Low: 30 °F

    Showers
    Likely then
    Chance
    Showers

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 35. Northwest wind around 5 mph becoming calm.
Sunday
Isolated showers between 3pm and 4pm, then a chance of rain after 4pm. Increasing clouds, with a high near 51. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain. Low around 45. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers likely. Cloudy, with a high near 55. Northwest wind around 5 mph. Chance of precipitation is 70%.
Monday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 30. West wind around 5 mph. Chance of precipitation is 60%.
Veterans Day
Mostly sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Partly sunny, with a high near 49.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Mostly sunny, with a high near 47.
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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:
12:27 pm EST Nov 8, 2025
Forecast Valid:
8pm EST Nov 8, 2025-6pm EST Nov 15, 2025
 
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