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

29°F

-2°C

Humidity 79%
Wind Speed SW 5 mph
Barometer 29.92 in (1013.5 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 4 Dec 2:55 am EST
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: Scattered flurries. Mostly cloudy, with a low around 23. South wind around 5 mph.

    Low: 23 °F

    Scattered
    Flurries

  • Thursday

    Thursday: A 30 percent chance of snow showers, mainly between 11am and 5pm. Mostly cloudy, with a high near 38. Southwest wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 38 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 6. Wind chill values as low as -6. Breezy, 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: 6 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Friday

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

    High: 26 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 13. Calm wind.

    Low: 13 °F

    Mostly Cloudy

  • Saturday

    Saturday: Scattered snow showers before 1pm, then scattered rain and snow showers between 1pm and 3pm, then scattered rain showers after 3pm. Mostly cloudy, with a high near 36. Chance of precipitation is 40%.

    High: 36 °F

    Scattered
    Snow Showers
    then
    Scattered
    Rain/Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Scattered flurries. Mostly cloudy, with a low around 23. South wind around 5 mph.
Thursday
A 30 percent chance of snow showers, mainly between 11am and 5pm. Mostly cloudy, with a high near 38. Southwest wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Mostly clear, with a low around 6. Wind chill values as low as -6. Breezy, 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
Mostly 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 13. Calm wind.
Saturday
Scattered snow showers before 1pm, then scattered rain and snow showers between 1pm and 3pm, then scattered rain showers after 3pm. Mostly cloudy, with a high near 36. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 38.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
Sunny, with a high near 26.
Monday Night
Mostly clear, with a low around 8.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 21.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 39. Chance of precipitation is 30%.
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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:
12:56 am EST Dec 4, 2025
Forecast Valid:
3am EST Dec 4, 2025-6pm EST Dec 10, 2025
 
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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