National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Mostly Cloudy

58°F

14°C

Humidity 55%
Wind Speed NE 3 mph
Barometer 30.35 in (1028.0 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 24 Sep 6:55 pm EDT
Extended Forecast for

Portsmouth NH

High Surf Advisory September 25, 08:00am until September 27, 08:00pm
Click here for hazard details and duration
High Surf Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. North wind 5 to 10 mph.

    Low: 47 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 66. Breezy, with a northeast wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 66 °F

    Mostly Cloudy
    then Cloudy
    and Breezy

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly after 9pm. Cloudy, with a low around 52. Breezy, with a northeast wind 10 to 20 mph, with gusts as high as 35 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Chance Rain
    and Breezy

  • Saturday

    Saturday: Rain, mainly after 10am. High near 62. Breezy, with a northeast wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.

    High: 62 °F

    Rain and
    Breezy

  • Saturday Night

    Saturday Night: Rain. Low around 52. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%.

    Low: 52 °F

    Rain and
    Breezy

  • Sunday

    Sunday: Rain. High near 62. Breezy. Chance of precipitation is 80%.

    High: 62 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain. Low around 51. Chance of precipitation is 90%.

    Low: 51 °F

    Rain

  • Monday

    Monday: Rain. High near 61. Chance of precipitation is 90%.

    High: 61 °F

    Rain

  • Monday Night

    Monday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 47. North wind 5 to 10 mph.
Friday
Mostly cloudy, with a high near 66. Breezy, with a northeast wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Friday Night
A 40 percent chance of rain, mainly after 9pm. Cloudy, with a low around 52. Breezy, with a northeast wind 10 to 20 mph, with gusts as high as 35 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain, mainly after 10am. High near 62. Breezy, with a northeast wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.
Saturday Night
Rain. Low around 52. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%.
Sunday
Rain. High near 62. Breezy. Chance of precipitation is 80%.
Sunday Night
Rain. Low around 51. Chance of precipitation is 90%.
Monday
Rain. High near 61. Chance of precipitation is 90%.
Monday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Tuesday
Mostly cloudy, with a high near 66.
Tuesday Night
Mostly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 72.
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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:
6:46 pm EDT Sep 24, 2026
Forecast Valid:
7pm EDT Sep 24, 2026-6pm EDT Oct 1, 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