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.

Fair

22°F

-6°C

Humidity 52%
Wind Speed W 18 G 29 mph
Barometer 30.04 in (1017.6 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 8 Dec 4:55 am EST
Extended Forecast for

Portsmouth NH

  • Today

    Today: Sunny, with a high near 24. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 24 °F

    Sunny and
    Blustery then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 6. Wind chill values as low as -1. Northwest wind 5 to 10 mph.

    Low: 6 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 29. Wind chill values as low as -1. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 29 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 22. South wind around 5 mph.

    Low: 22 °F

    Chance Snow

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 43. Southwest wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 43 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain before 2am. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 24. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 6. Wind chill values as low as -1. Northwest wind 5 to 10 mph.
Tuesday
Increasing clouds, with a high near 29. Wind chill values as low as -1. Light west wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22. South wind around 5 mph.
Wednesday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 43. Southwest wind 5 to 10 mph. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of rain before 2am. Mostly cloudy, with a low around 29.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 34.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 16.
Sunday
Mostly sunny, with a high near 30.
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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:
12:52 am EST Dec 8, 2025
Forecast Valid:
5am EST Dec 8, 2025-6pm EST Dec 14, 2025
 
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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