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

43°F

6°C

Humidity 62%
Wind Speed NW 7 mph
Barometer 30.17 in (1022.0 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 10 Jan 10:55 am EST
Extended Forecast for

Portsmouth NH

  • Today

    Today: Mostly cloudy, with a high near 43. Northwest wind around 5 mph becoming calm.

    High: 43 °F

    Mostly Cloudy

  • Tonight

    Tonight: Rain before 11pm, then snow and sleet. Low around 33. Calm wind becoming east around 5 mph in the evening. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.

    Low: 33 °F

    Wintry Mix

  • Sunday

    Sunday: A chance of rain and snow before 4pm, then a chance of rain. Mostly cloudy, with a high near 37. North wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 37 °F

    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 8pm. Partly cloudy, with a low around 23. West wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 23 °F

    Chance Snow
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 45.

    High: 45 °F

    Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 43. Northwest wind around 5 mph becoming calm.
Tonight
Rain before 11pm, then snow and sleet. Low around 33. Calm wind becoming east around 5 mph in the evening. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.
Sunday
A chance of rain and snow before 4pm, then a chance of rain. Mostly cloudy, with a high near 37. North wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 30 percent chance of snow before 8pm. Partly cloudy, with a low around 23. West wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 35. West wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Cloudy, with a high near 45.
Wednesday Night
Cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 35.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.06°N 70.81°W (Elev. 56 ft)
Last Update:
6:47 am EST Jan 10, 2026
Forecast Valid:
11am EST Jan 10, 2026-6pm EST Jan 16, 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