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

48°F

9°C

Humidity 21%
Wind Speed NW 7 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 17 Apr 8:55 pm EDT
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Mostly clear, with a low around 35. Southwest wind 5 to 10 mph.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 66. West wind 5 to 10 mph becoming south 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 66 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 50. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 74. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 74 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 48. West wind 5 to 10 mph.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 35. Southwest wind 5 to 10 mph.
Friday
Increasing clouds, with a high near 66. West wind 5 to 10 mph becoming south 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 50. Southwest wind around 10 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 74. Southwest wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 48. West wind 5 to 10 mph.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 36.
Monday
Mostly sunny, with a high near 53.
Monday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 40.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
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:
7:20 pm EDT Apr 17, 2025
Forecast Valid:
9pm EDT Apr 17, 2025-6pm EDT Apr 24, 2025
 
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