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

26°F

-3°C

Humidity 52%
Wind Speed S 5 mph
Barometer 29.69 in (1005.8 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 31 Dec 7:55 pm EST
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Snow, mainly after midnight. Low around 20. South wind around 5 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of around an inch possible.

    Low: 20 °F

    Mostly Cloudy
    then Snow

  • New Year's Day

    New Year's Day: A 40 percent chance of snow, mainly before 11am. Cloudy through mid morning, then gradual clearing, with a temperature rising to near 28 by 10am, then falling to around 17 during the remainder of the day. West wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 28 °F⇓

    Chance Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 6. Wind chill values as low as -8. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 6 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 25. Wind chill values as low as -7. West wind around 10 mph, with gusts as high as 20 mph.

    High: 25 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 12. West wind around 5 mph.

    Low: 12 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 4am. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Sunday Night

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

    Low: 9 °F

    Mostly Clear

Detailed Forecast

Tonight
Snow, mainly after midnight. Low around 20. South wind around 5 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of around an inch possible.
New Year's Day
A 40 percent chance of snow, mainly before 11am. Cloudy through mid morning, then gradual clearing, with a temperature rising to near 28 by 10am, then falling to around 17 during the remainder of the day. West wind 5 to 15 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 6. Wind chill values as low as -8. West wind around 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 25. Wind chill values as low as -7. West wind around 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 12. West wind around 5 mph.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
A 30 percent chance of snow after 4am. Mostly cloudy, with a low around 15.
Sunday
Partly sunny, with a high near 27.
Sunday Night
Mostly clear, with a low around 9.
Monday
Mostly sunny, with a high near 24.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 23.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 40.
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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:
12:29 pm EST Dec 31, 2025
Forecast Valid:
8pm EST Dec 31, 2025-6pm EST Jan 7, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation