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

64°F

18°C

Humidity 39%
Wind Speed W 9 mph
Barometer 30.17 in (1021.9 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 21 May 9:55 am EDT
Extended Forecast for

Seabrook NH

  • Today

    Today: Mostly cloudy, with a high near 66. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 66 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Calm wind becoming north around 5 mph.

    Low: 43 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 64. North wind around 5 mph becoming southeast in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 45. South wind around 5 mph becoming calm.

    Low: 45 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 62. Calm wind becoming east around 5 mph in the afternoon.

    High: 62 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Cloudy, with a low around 46.

    Low: 46 °F

    Cloudy then
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 8am. Cloudy, with a high near 56. Chance of precipitation is 70%.

    High: 56 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely

  • Memorial Day

    Memorial Day: A 40 percent chance of showers. Cloudy, with a high near 66.

    High: 66 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 66. Northeast wind around 5 mph becoming southeast in the afternoon.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Calm wind becoming north around 5 mph.
Friday
Mostly sunny, with a high near 64. North wind around 5 mph becoming southeast in the afternoon.
Friday Night
Increasing clouds, with a low around 45. South wind around 5 mph becoming calm.
Saturday
Mostly cloudy, with a high near 62. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers after 2am. Cloudy, with a low around 46.
Sunday
Showers likely, mainly after 8am. Cloudy, with a high near 56. Chance of precipitation is 70%.
Sunday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Memorial Day
A 40 percent chance of showers. Cloudy, with a high near 66.
Monday Night
Mostly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Seabrook NH
 42.91°N 70.88°W (Elev. 49 ft)
Last Update:
6:48 am EDT May 21, 2026
Forecast Valid:
10am EDT May 21, 2026-6pm EDT May 27, 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