National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

A Few Clouds

22°F

-6°C

Humidity 50%
Wind Speed NW 15 G 25 mph
Barometer 30.06 in (1018.3 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 4 Dec 6:55 pm EST
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Mostly clear, with a low around 5. Wind chill values as low as -7. Blustery, with a west wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 35 mph.

    Low: 5 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 26. Wind chill values as low as -4. Southwest wind around 5 mph.

    High: 26 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16. Calm wind.

    Low: 16 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow showers between 10am and noon. Mostly cloudy, with a high near 38. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 38 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. Calm wind becoming west around 5 mph after midnight.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of snow after midnight. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy
    then Chance
    Snow

  • Monday

    Monday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 5. Wind chill values as low as -7. Blustery, with a west wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 35 mph.
Friday
Sunny, with a high near 26. Wind chill values as low as -4. Southwest wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 16. Calm wind.
Saturday
A chance of snow showers between 10am and noon. Mostly cloudy, with a high near 38. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 23. Calm wind becoming west around 5 mph after midnight.
Sunday
Partly sunny, with a high near 37.
Sunday Night
A 40 percent chance of snow after midnight. Mostly cloudy, with a low around 18.
Monday
Mostly sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 9.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 27.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.
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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:
7:26 pm EST Dec 4, 2025
Forecast Valid:
7pm EST Dec 4, 2025-6pm EST Dec 11, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation