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.

A Few Clouds

55°F

13°C

Humidity 25%
Wind Speed NW 16 G 25 mph
Barometer 30.17 in (1021.9 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 11 Apr 5:55 pm EDT
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Mostly clear, with a low around 33. Breezy, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 33 °F

    Mostly Clear
    and Breezy
    then Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 51. Calm wind becoming south around 5 mph in the afternoon.

    High: 51 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Showers, mainly after 11pm. Low around 38. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers

  • Monday

    Monday: Showers before 10am, then a chance of showers after noon. High near 65. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 65 °F

    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. West wind around 5 mph.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers between 8pm and 3am. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.

    Low: 52 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 33. Breezy, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Sunday
Increasing clouds, with a high near 51. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Showers, mainly after 11pm. Low around 38. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers before 10am, then a chance of showers after noon. High near 65. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Monday Night
Partly cloudy, with a low around 53. West wind around 5 mph.
Tuesday
Partly sunny, with a high near 70.
Tuesday Night
A chance of showers between 8pm and 3am. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 70.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49.
Thursday
Mostly cloudy, with a high near 67.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.05°N 70.78°W (Elev. 49 ft)
Last Update:
2:28 pm EDT Apr 11, 2026
Forecast Valid:
6pm EDT Apr 11, 2026-6pm EDT Apr 18, 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