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.

A Few Clouds

8°F

-13°C

Humidity 51%
Wind Speed W 5 mph
Barometer 30.31 in (1026.8 mb)
Dewpoint -7°F (-22°C)
Visibility 10.00 mi
Wind Chill-1°F (-18°C)
Last update 5 Dec 6:55 am EST
Extended Forecast for

Portsmouth NH

  • Today

    Today: Sunny, with a high near 26. West wind around 5 mph becoming southwest in the afternoon.

    High: 26 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 15. Calm wind.

    Low: 15 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain and snow showers before 2pm, then a slight chance of rain showers between 2pm and 3pm. Mostly cloudy, with a high near 37. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 37 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. West wind around 5 mph.

    Low: 23 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 37. Northwest wind around 5 mph.

    High: 37 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of snow after 10pm. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow

  • Monday

    Monday: A 30 percent chance of snow before 7am. Mostly sunny, with a high near 26.

    High: 26 °F

    Chance Snow
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 26. West wind around 5 mph becoming southwest in the afternoon.
Tonight
Partly cloudy, with a low around 15. Calm wind.
Saturday
A chance of rain and snow showers before 2pm, then a slight chance of rain showers between 2pm and 3pm. Mostly cloudy, with a high near 37. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 23. West wind around 5 mph.
Sunday
Partly sunny, with a high near 37. Northwest wind around 5 mph.
Sunday Night
A 50 percent chance of snow after 10pm. Mostly cloudy, with a low around 17.
Monday
A 30 percent chance of snow before 7am. Mostly sunny, with a high near 26.
Monday Night
Mostly clear, with a low around 6.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
A chance of snow between 7pm and midnight. Mostly cloudy, with a low around 22. Chance of precipitation is 50%.
Wednesday
Mostly cloudy, with a high near 44.
Wednesday Night
Rain likely. Cloudy, with a low around 32. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.07°N 70.78°W (Elev. 33 ft)
Last Update:
6:20 am EST Dec 5, 2025
Forecast Valid:
7am EST Dec 5, 2025-6pm EST Dec 11, 2025
 
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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