Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Mostly Cloudy

69°F

21°C

Humidity 91%
Wind Speed E 6 mph
Barometer 29.70 in (1006.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 28 Jul 7:55 pm EDT
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 64. Southeast wind around 5 mph.

    Low: 64 °F

    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm.  Patchy fog before 10am.  Otherwise, mostly cloudy, with a high near 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm.  Low around 59. Northeast wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 59 °F

    Showers

  • Thursday

    Thursday: Showers.  High near 71. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%.

    High: 71 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 8pm.  Mostly cloudy, with a low around 60. North wind around 5 mph.  Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 64. Southeast wind around 5 mph.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 59. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Thursday
Showers. High near 71. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 60. North wind around 5 mph. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
A 30 percent chance of showers after 5pm. Partly sunny, with a high near 82.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 65.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 80.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.05°N 70.75°W (Elev. 13 ft)
2:35 pm EDT Jul 28, 2026
8pm EDT Jul 28, 2026-6pm EDT Aug 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database