Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Overcast

55°F

13°C

Humidity 64%
Wind Speed Calm
Barometer 29.95 in (1014.4 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 31 Mar 3:55 am EDT
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: A 40 percent chance of rain.  Cloudy, with a steady temperature around 50. Calm wind.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain, mainly before noon.  High near 47. Northeast wind 5 to 10 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain likely and possibly a thunderstorm before 2am, then a chance of rain.  Mostly cloudy, with a low around 37. Northeast wind around 5 mph becoming north after midnight.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 37 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain likely, mainly after 2pm.  Mostly cloudy, with a high near 58. Northeast wind 5 to 10 mph becoming west in the morning.  Chance of precipitation is 60%.

    High: 58 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before midnight.  Cloudy, with a low around 33. Northeast wind around 5 mph.  Chance of precipitation is 60%.

    Low: 33 °F

    Rain Likely

  • Thursday

    Thursday: A 40 percent chance of rain.  Mostly cloudy, with a high near 39.

    High: 39 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 40 percent chance of rain.  Cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

  • Friday

    Friday: Cloudy, with a high near 60.

    High: 60 °F

    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of rain. Cloudy, with a steady temperature around 50. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain, mainly before noon. High near 47. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain likely and possibly a thunderstorm before 2am, then a chance of rain. Mostly cloudy, with a low around 37. Northeast wind around 5 mph becoming north after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 58. Northeast wind 5 to 10 mph becoming west in the morning. Chance of precipitation is 60%.
Wednesday Night
Rain likely, mainly before midnight. Cloudy, with a low around 33. Northeast wind around 5 mph. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 39.
Thursday Night
A 40 percent chance of rain. Cloudy, with a low around 33.
Friday
Cloudy, with a high near 60.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 60.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 38.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 63.
Sunday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.07°N 70.78°W (Elev. 33 ft)
2:25 am EDT Mar 31, 2026
4am EDT Mar 31, 2026-6pm EDT Apr 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database