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

54°F

12°C

Humidity 93%
Wind Speed Calm
Barometer 29.95 in (1014.5 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Oct 2:55 am EDT
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: Partly cloudy, with a low around 46. West wind around 5 mph.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 63. Northwest wind 5 to 15 mph.

    High: 63 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 56. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 56 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40. North wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 46. West wind around 5 mph.
Wednesday
Partly sunny, with a high near 63. Northwest wind 5 to 15 mph.
Wednesday Night
Mostly clear, with a low around 36. Northwest wind around 10 mph, with gusts as high as 20 mph.
Thursday
Increasing clouds, with a high near 56. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 40. North wind 5 to 15 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50.
Monday
Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Monday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.05°N 70.78°W (Elev. 49 ft)
Last Update:
1:50 am EDT Oct 15, 2025
Forecast Valid:
3am EDT Oct 15, 2025-6pm EDT Oct 21, 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