Hazardous Weather Conditions

Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Mostly Cloudy

64°F

18°C

Humidity 92%
Wind Speed Calm
Barometer 29.91 in (1013.1 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 17 Aug 5:55 am EDT
Extended Forecast for

Portsmouth NH

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 89. Southwest wind 5 to 10 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 2am.  Mostly cloudy, with a low around 57. North wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 73. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 58 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers after 8am.  Mostly cloudy, with a high near 72.

    High: 72 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 89. Southwest wind 5 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 2am. Mostly cloudy, with a low around 57. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Sunny, with a high near 73. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 53. Calm wind.
Tuesday
Mostly sunny, with a high near 74. Northeast wind around 5 mph becoming southeast in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 58.
Wednesday
A 40 percent chance of showers after 8am. Mostly cloudy, with a high near 72.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.03°N 70.79°W (Elev. 59 ft)
3:53 am EDT Aug 17, 2025
6am EDT Aug 17, 2025-6pm EDT Aug 23, 2025
 
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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