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

42°F

6°C

Humidity 48%
Wind Speed SW 9 mph
Barometer 29.87 in (1011.8 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 13 Jan 2:55 pm EST
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: A slight chance of rain between 1am and 4am. Cloudy, with a low around 34. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Cloudy then
    Slight Chance
    Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 46. Southwest wind around 5 mph.

    High: 46 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain, mainly after 7pm. Cloudy, with a low around 32. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 41. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 41 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11. West wind around 10 mph.

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 30.

    High: 30 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of rain between 1am and 4am. Cloudy, with a low around 34. South wind around 5 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 46. Southwest wind around 5 mph.
Wednesday Night
A 50 percent chance of rain, mainly after 7pm. Cloudy, with a low around 32. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 40 percent chance of rain before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 41. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 11. West wind around 10 mph.
Friday
Sunny, with a high near 30.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 18.
M.L.King Day
Mostly sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 25.
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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:
12:02 pm EST Jan 13, 2026
Forecast Valid:
3pm EST Jan 13, 2026-6pm EST Jan 20, 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