Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Mostly Cloudy

86°F

30°C

Humidity 41%
Wind Speed SW 9 mph
Barometer 29.79 in (1009.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 14 Jun 10:55 am EDT
Extended Forecast for

Portsmouth NH

Coastal Flood Advisory June 14, 09:00pm until June 15, 01:00am
Click here for hazard details and duration
Coastal Flood Advisory
  • Today

    Today: Increasing clouds, with a high near 89. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 89 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 3am, then rain and possibly a thunderstorm between 3am and 5am, then showers likely and possibly a thunderstorm after 5am.  Low around 63. South wind 5 to 10 mph.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Slight Chance
    Showers then
    Showers

  • Monday

    Monday: A 30 percent chance of showers before 8am.  Mostly cloudy, then gradually becoming sunny, with a high near 82. West wind 5 to 10 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 82 °F

    Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 56. Northwest wind around 5 mph.

    Low: 56 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 77. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers after 7am.  Partly sunny, with a high near 79.

    High: 79 °F

    Chance
    Showers

Detailed Forecast

Today
Increasing clouds, with a high near 89. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Showers likely and possibly a thunderstorm before 3am, then rain and possibly a thunderstorm between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Low around 63. South wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 82. West wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 56. Northwest wind around 5 mph.
Tuesday
Sunny, with a high near 77. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Mostly cloudy, with a low around 58.
Thursday
A 50 percent chance of showers after 7am. Partly sunny, with a high near 79.
Thursday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Juneteenth
A 30 percent chance of showers. Partly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.05°N 70.78°W (Elev. 49 ft)
8:32 am EDT Jun 14, 2026
11am EDT Jun 14, 2026-6pm EDT Jun 20, 2026
 
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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