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

44°F

7°C

Humidity 71%
Wind Speed W 8 mph
Barometer 29.76 in (1008.1 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 5 Apr 11:55 pm EDT
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: Mostly clear, with a low around 34. West wind around 5 mph.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 48. West wind around 10 mph, with gusts as high as 20 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow showers after 2am. Partly cloudy, with a low around 29. West wind around 5 mph becoming calm.

    Low: 29 °F

    Partly Cloudy
    then Slight
    Chance Snow
    Showers

  • Tuesday

    Tuesday: Snow showers likely before 3pm, then a chance of rain and snow showers. Partly sunny, with a high near 43. North wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Snow Showers
    Likely then
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. Northwest wind around 5 mph.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 29.

    Low: 29 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 34. West wind around 5 mph.
Monday
Mostly sunny, with a high near 48. West wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of snow showers after 2am. Partly cloudy, with a low around 29. West wind around 5 mph becoming calm.
Tuesday
Snow showers likely before 3pm, then a chance of rain and snow showers. Partly sunny, with a high near 43. North wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night
Mostly clear, with a low around 24. Northwest wind around 5 mph.
Wednesday
Sunny, with a high near 45.
Wednesday Night
Clear, with a low around 29.
Thursday
Sunny, with a high near 51.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 62.
Friday Night
Mostly cloudy, with a low around 44.
Saturday
Partly sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 54.
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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:
9:03 pm EDT Apr 5, 2026
Forecast Valid:
12am EDT Apr 6, 2026-6pm EDT Apr 12, 2026
 
Forecast Discussion
 
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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