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.

Light Rain Fog/Mist

41°F

5°C

Humidity 90%
Wind Speed N 10 mph
Barometer 29.58 in (1002.0 mb)
Dewpoint 39°F (4°C)
Visibility 5.00 mi
Wind Chill35°F (2°C)
Last update 12 Nov 9:55 pm EST
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Rain. Low around 37. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain

  • Friday

    Friday: A 40 percent chance of rain, mainly after 5pm. Cloudy, with a high near 46. North wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28. North wind around 5 mph.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 48. Northwest wind around 5 mph.

    High: 48 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28. West wind around 5 mph.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 29.

    Low: 29 °F

    Clear

Detailed Forecast

Tonight
Rain. Low around 37. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 40 percent chance of rain, mainly after 5pm. Cloudy, with a high near 46. North wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 28. North wind around 5 mph.
Saturday
Mostly cloudy, with a high near 48. Northwest wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 28. West wind around 5 mph.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Sunny, with a high near 50.
Monday Night
Clear, with a low around 29.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 34.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.05°N 70.75°W (Elev. 13 ft)
Last Update:
9:15 pm EST Nov 12, 2026
Forecast Valid:
10pm EST Nov 12, 2026-6pm EST Nov 19, 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