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.

Partly Cloudy

29°F

-2°C

Humidity 92%
Wind Speed SW 5 mph
Barometer 30.10 in (1019.7 mb)
Dewpoint 27°F (-3°C)
Visibility 7.00 mi
Wind Chill24°F (-4°C)
Last update 4 Mar 3:55 am EST
Extended Forecast for

Portsmouth NH

  • Today

    Today: Sunny, with a high near 49. West wind around 5 mph.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 40. Light and variable wind becoming northeast 5 to 10 mph in the morning.

    High: 40 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A chance of rain and sleet before 9pm, then snow and sleet. Low around 31. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New snow and sleet accumulation of 1 to 2 inches possible.

    Low: 31 °F

    Chance Wintry
    Mix then
    Snow/Sleet

  • Friday

    Friday: Rain, snow, and sleet likely before 11am, then a chance of rain and sleet between 11am and 1pm. Cloudy, with a high near 37. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New snow and sleet accumulation of less than a half inch possible.

    High: 37 °F

    Wintry Mix
    Likely

  • Friday Night

    Friday Night: Cloudy, with a low around 29.

    Low: 29 °F

    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of rain between 8pm and 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.

    Low: 38 °F

    Chance Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 49. West wind around 5 mph.
Tonight
Partly cloudy, with a low around 24. Calm wind.
Thursday
Increasing clouds, with a high near 40. Light and variable wind becoming northeast 5 to 10 mph in the morning.
Thursday Night
A chance of rain and sleet before 9pm, then snow and sleet. Low around 31. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New snow and sleet accumulation of 1 to 2 inches possible.
Friday
Rain, snow, and sleet likely before 11am, then a chance of rain and sleet between 11am and 1pm. Cloudy, with a high near 37. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New snow and sleet accumulation of less than a half inch possible.
Friday Night
Cloudy, with a low around 29.
Saturday
Mostly cloudy, with a high near 51.
Saturday Night
A chance of rain between 8pm and 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.07°N 70.78°W (Elev. 33 ft)
Last Update:
1:48 am EST Mar 4, 2026
Forecast Valid:
4am EST Mar 4, 2026-6pm EDT Mar 10, 2026
 
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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