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.

Overcast

56°F

13°C

Humidity 49%
Wind Speed SW 6 mph
Barometer 29.94 in (1014.1 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 11 Apr 2:55 am EDT
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: Scattered showers. Mostly cloudy, with a low around 43. West wind around 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Scattered
    Showers

  • Saturday

    Saturday: Sunny, with a high near 54. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 54 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 34. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 34 °F

    Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 52. Calm wind becoming south around 5 mph in the afternoon.

    High: 52 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Showers likely, mainly after 11pm. Cloudy, with a low around 39. South wind around 5 mph. Chance of precipitation is 60%.

    Low: 39 °F

    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 64.

    High: 64 °F

    Cloudy then
    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers after 9pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Overnight
Scattered showers. Mostly cloudy, with a low around 43. West wind around 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 54. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Clear, with a low around 34. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
Increasing clouds, with a high near 52. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Showers likely, mainly after 11pm. Cloudy, with a low around 39. South wind around 5 mph. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 64.
Monday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 52.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
A 50 percent chance of showers after 9pm. Mostly cloudy, with a low around 47.
Wednesday
A chance of showers before 10am, then a chance of showers after 2pm. Mostly cloudy, with a high near 67. Chance of precipitation is 30%.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 70.
Thursday Night
Mostly cloudy, with a low around 48.
Friday
Partly sunny, with a high near 62.
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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:
2:29 am EDT Apr 11, 2026
Forecast Valid:
3am EDT Apr 11, 2026-6pm EDT Apr 17, 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