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.

Fog

57°F

14°C

Humidity 96%
Wind Speed Calm
Barometer 29.80 in (1009.4 mb)
Dewpoint 56°F (13°C)
Visibility 0.13 mi
Last update 15 Apr 4:55 am EDT
Extended Forecast for

2 Miles NNE Portsmouth NH

  • Today

    Today: Scattered showers, mainly after 5pm. Areas of fog between 3pm and 5pm. Otherwise, partly sunny, with a high near 59. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Areas Fog
    then
    Scattered
    Showers and
    Areas Fog

  • Tonight

    Tonight: Scattered showers and thunderstorms, then showers likely after 3am. Areas of fog after 7pm. Otherwise, cloudy, with a low around 44. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers
    Likely and
    Areas Fog

  • Thursday

    Thursday: Scattered showers, with thunderstorms also possible after 5pm. Areas of fog between 1pm and 2pm. Otherwise, mostly cloudy, with a high near 58. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Chance
    Showers and
    Areas Fog

  • Thursday Night

    Thursday Night: Showers likely, mainly between 7pm and 1am. Mostly cloudy, with a low around 46. Calm wind. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly after 11am. Mostly cloudy, with a high near 60. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers before 10pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 5pm. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.

    High: 58 °F

    Showers
    Likely

Detailed Forecast

Today
Scattered showers, mainly after 5pm. Areas of fog between 3pm and 5pm. Otherwise, partly sunny, with a high near 59. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Scattered showers and thunderstorms, then showers likely after 3am. Areas of fog after 7pm. Otherwise, cloudy, with a low around 44. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Scattered showers, with thunderstorms also possible after 5pm. Areas of fog between 1pm and 2pm. Otherwise, mostly cloudy, with a high near 58. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely, mainly between 7pm and 1am. Mostly cloudy, with a low around 46. Calm wind. Chance of precipitation is 60%.
Friday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 60. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers before 10pm. Mostly cloudy, with a low around 44.
Saturday
Mostly cloudy, with a high near 53.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Showers likely, mainly after 5pm. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 36.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Portsmouth NH
 43.07°N 70.78°W (Elev. 33 ft)
Last Update:
2:38 am EDT Apr 15, 2026
Forecast Valid:
5am EDT Apr 15, 2026-6pm EDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation