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.

Mostly Cloudy

42°F

6°C

Humidity 62%
Wind Speed NW 7 mph
Barometer 29.80 in (1009.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 13 Nov 5:55 pm EST
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. Northwest wind 5 to 10 mph.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 46. West wind 5 to 10 mph.

    High: 46 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Rain, mainly after 7pm. Low around 35. Southwest wind around 5 mph. Chance of precipitation is 90%.

    Low: 35 °F

    Rain Likely
    then Rain

  • Sunday

    Sunday: Rain likely, mainly before 10am. Partly sunny, with a high near 53. Chance of precipitation is 70%.

    High: 53 °F

    Rain Likely
    then Chance
    Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before 8pm. Partly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 33. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 27. Northwest wind 5 to 10 mph.
Saturday
Increasing clouds, with a high near 46. West wind 5 to 10 mph.
Saturday Night
Rain, mainly after 7pm. Low around 35. Southwest wind around 5 mph. Chance of precipitation is 90%.
Sunday
Rain likely, mainly before 10am. Partly sunny, with a high near 53. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of rain before 8pm. Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 47.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.05°N 70.78°W (Elev. 49 ft)
Last Update:
6:06 pm EST Nov 13, 2025
Forecast Valid:
6pm EST Nov 13, 2025-6pm EST Nov 20, 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