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/Mist

34°F

1°C

Humidity 93%
Wind Speed N 13 mph
Barometer 29.82 in (1010.1 mb)
Dewpoint 32°F (0°C)
Visibility 2.00 mi
Wind Chill25°F (-4°C)
Last update 23 Mar 3:55 am EDT
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: A chance of rain before 4am, then a chance of rain and snow. Patchy fog. Otherwise, cloudy, with a low around 30. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 30 °F

    Chance
    Rain/Snow and
    Patchy Fog

  • Monday

    Monday: A chance of rain and snow showers before 8am, then a chance of snow showers between 8am and noon, then a chance of rain and snow showers after noon. Areas of fog before 8am. Otherwise, cloudy, with a high near 38. North wind around 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 possible.

    High: 38 °F

    Chance
    Rain/Snow and
    Areas Fog

  • Monday Night

    Monday Night: A chance of rain and snow showers before 7pm, then a slight chance of snow showers between 7pm and midnight. Mostly cloudy, with a low around 26. North wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 26 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44. North wind around 5 mph becoming southwest in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. Southwest wind around 5 mph.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 3am. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A 30 percent chance of rain before 9am. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.

    Low: 37 °F

    Rain Likely

Detailed Forecast

Overnight
A chance of rain before 4am, then a chance of rain and snow. Patchy fog. Otherwise, cloudy, with a low around 30. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of rain and snow showers before 8am, then a chance of snow showers between 8am and noon, then a chance of rain and snow showers after noon. Areas of fog before 8am. Otherwise, cloudy, with a high near 38. North wind around 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 possible.
Monday Night
A chance of rain and snow showers before 7pm, then a slight chance of snow showers between 7pm and midnight. Mostly cloudy, with a low around 26. North wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Mostly sunny, with a high near 44. North wind around 5 mph becoming southwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 29. Southwest wind around 5 mph.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
A 30 percent chance of rain after 3am. Mostly cloudy, with a low around 36.
Thursday
A 30 percent chance of rain before 9am. Mostly cloudy, with a high near 55.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Friday
Rain likely, possibly mixed with snow, mainly before 7am. Partly sunny, with a high near 47. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 19.
Saturday
Sunny, with a high near 38.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Sunny, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.05°N 70.78°W (Elev. 49 ft)
Last Update:
2:26 am EDT Mar 23, 2026
Forecast Valid:
3am EDT Mar 23, 2026-6pm EDT Mar 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation