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.

Fair

15°F

-9°C

Humidity 49%
Wind Speed SW 10 mph
Barometer 30.30 in (1026.5 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 20 Jan 7:55 pm EST
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Mostly clear, with a low around 11. Wind chill values as low as zero. West wind around 10 mph, with gusts as high as 25 mph.

    Low: 11 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 30. Wind chill values as low as -1. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 30 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A chance of snow before 1am, then a chance of snow showers, mainly between 1am and 4am. Mostly cloudy, with a low around 22. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    Low: 22 °F

    Chance Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 41. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20. West wind around 5 mph.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 11.

    High: 11 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 2.

    Low: 2 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 11. Wind chill values as low as zero. West wind around 10 mph, with gusts as high as 25 mph.
Wednesday
Increasing clouds, with a high near 30. Wind chill values as low as -1. Southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of snow before 1am, then a chance of snow showers, mainly between 1am and 4am. Mostly cloudy, with a low around 22. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 41. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 20. West wind around 5 mph.
Friday
Partly sunny, with a high near 28.
Friday Night
Partly cloudy, with a low around 2.
Saturday
Sunny, with a high near 11.
Saturday Night
Mostly cloudy, with a low around 2.
Sunday
A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 14.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 7.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 21.
Monday Night
Mostly cloudy, with a low around 8.
Tuesday
Mostly sunny, with a high near 25.
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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:
6:08 pm EST Jan 20, 2026
Forecast Valid:
8pm EST Jan 20, 2026-6pm EST Jan 27, 2026
 
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Additional Resources

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Chance of Precipitation