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

39°F

4°C

Humidity 74%
Wind Speed SW 8 mph
Barometer 29.67 in (1005.1 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 12 Nov 11:55 am EST
Extended Forecast for

Portsmouth NH

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 44. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 44 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Southwest wind around 5 mph.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Isolated showers after 2pm. Partly sunny, with a high near 48. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 48 °F

    Mostly Sunny
    then Isolated
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Northwest wind around 5 mph.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 46. Northwest wind 5 to 10 mph.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Saturday Night

    Saturday Night: Rain likely, mainly after 3am. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.

    Low: 31 °F

    Chance Rain
    then Rain
    Likely

  • Sunday

    Sunday: Rain likely, mainly before 2pm. Mostly cloudy, with a high near 52. Chance of precipitation is 70%.

    High: 52 °F

    Rain Likely

Detailed Forecast

This Afternoon
Partly sunny, with a high near 44. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 34. Southwest wind around 5 mph.
Thursday
Isolated showers after 2pm. Partly sunny, with a high near 48. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 31. Northwest wind around 5 mph.
Friday
Mostly sunny, with a high near 46. Northwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 27.
Saturday
Sunny, with a high near 45.
Saturday Night
Rain likely, mainly after 3am. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.
Sunday
Rain likely, mainly before 2pm. Mostly cloudy, with a high near 52. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of rain before 2am. Mostly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 46.
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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:
12:24 pm EST Nov 12, 2025
Forecast Valid:
1pm EST Nov 12, 2025-6pm EST Nov 18, 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