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.

Overcast

28°F

-2°C

Humidity 74%
Wind Speed S 3 mph
Barometer 29.97 in (1015.2 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 3 Dec 11:55 pm EST
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. Southwest wind around 5 mph.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Isolated snow showers before 11am, then scattered snow showers after 1pm. Mostly cloudy, with a high near 38. Southwest wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.

    High: 38 °F

    Isolated Snow
    Showers then
    Scattered
    Snow Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 6. Wind chill values as low as -5. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 6 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 25. Wind chill values as low as -3. Southwest wind 5 to 10 mph.

    High: 25 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 13. Southwest wind around 5 mph becoming calm.

    Low: 13 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow after 10am. Mostly cloudy, with a high near 33.

    High: 33 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. Southwest wind around 5 mph.
Thursday
Isolated snow showers before 11am, then scattered snow showers after 1pm. Mostly cloudy, with a high near 38. Southwest wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.
Thursday Night
Mostly clear, with a low around 6. Wind chill values as low as -5. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Friday
Mostly sunny, with a high near 25. Wind chill values as low as -3. Southwest wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 13. Southwest wind around 5 mph becoming calm.
Saturday
A 30 percent chance of snow after 10am. Mostly cloudy, with a high near 33.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Partly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 8.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
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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 pm EST Dec 3, 2025
Forecast Valid:
12am EST Dec 4, 2025-6pm EST Dec 10, 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