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

56°F

13°C

Humidity 70%
Wind Speed NE 8 mph
Barometer 30.57 in (1035.5 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 23 Sep 8:55 am EDT
Extended Forecast for

Portsmouth NH

  • Today

    Today: Mostly sunny, with a high near 61. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 61 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. North wind around 5 mph.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 46. North wind around 5 mph.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 65. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 65 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of rain. Cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely. Mostly cloudy, with a high near 63. Breezy. Chance of precipitation is 60%.

    High: 63 °F

    Rain Likely
    and Breezy

  • Saturday Night

    Saturday Night: Showers likely. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely. Mostly cloudy, with a high near 62. Breezy. Chance of precipitation is 70%.

    High: 62 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 61. Northeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 46. North wind around 5 mph.
Thursday
Sunny, with a high near 62. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 46. North wind around 5 mph.
Friday
Mostly cloudy, with a high near 65. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.
Friday Night
A 50 percent chance of rain. Cloudy, with a low around 50.
Saturday
Rain likely. Mostly cloudy, with a high near 63. Breezy. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Sunday
Showers likely. Mostly cloudy, with a high near 62. Breezy. Chance of precipitation is 70%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 63.
Monday Night
Mostly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 66.
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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:
5:28 am EDT Sep 23, 2026
Forecast Valid:
11am EDT Sep 23, 2026-6pm EDT Sep 29, 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