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

48°F

9°C

Humidity 55%
Wind Speed SW 9 G 20 mph
Barometer 29.26 in (991.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 15 Jan 3:55 pm EST
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 18. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 18 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 30. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 30 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. West wind around 5 mph becoming calm in the evening.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain and snow before 2pm, then rain likely. Mostly cloudy, with a high near 39. Southwest wind around 5 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before 7pm. Mostly cloudy, with a low around 26. Southwest wind around 5 mph.

    Low: 26 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 18. West wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 30. West wind 10 to 15 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 21. West wind around 5 mph becoming calm in the evening.
Saturday
A chance of rain and snow before 2pm, then rain likely. Mostly cloudy, with a high near 39. Southwest wind around 5 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday Night
A 30 percent chance of rain before 7pm. Mostly cloudy, with a low around 26. Southwest wind around 5 mph.
Sunday
Mostly cloudy, with a high near 37.
Sunday Night
Mostly cloudy, with a low around 21.
M.L.King Day
Mostly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Mostly sunny, with a high near 21.
Tuesday Night
Partly cloudy, with a low around 8.
Wednesday
Mostly sunny, with a high near 25.
Wednesday Night
Mostly cloudy, with a low around 15.
Thursday
Mostly sunny, with a high near 32.
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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:
12:45 pm EST Jan 15, 2026
Forecast Valid:
4pm EST Jan 15, 2026-6pm EST Jan 22, 2026
 
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Additional Resources

Radar & Satellite Image

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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