National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Snow Freezing Fog

31°F

-1°C

Humidity 93%
Wind Speed Calm
Barometer 30.00 in (1016.3 mb)
Dewpoint 29°F (-2°C)
Visibility 0.25 mi
Last update 17 Jan 1:55 pm EST
Extended Forecast for

Portsmouth NH

  • This Afternoon

    This Afternoon: Snow likely before 2pm, then rain and snow likely. Cloudy, with a high near 33. Southwest wind around 5 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Rain/Snow
    Likely

  • Tonight

    Tonight: A 30 percent chance of snow before 7pm. Increasing clouds, with a low around 28. Southwest wind around 5 mph becoming calm in the evening.

    Low: 28 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: A slight chance of snow before 1pm, then a chance of snow after 2pm. Cloudy, with a high near 37. Southwest wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 30%.

    High: 37 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 22. Calm wind becoming northwest around 5 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 22 °F

    Snow Likely

  • M.L.King Day

    M.L.King Day: Partly sunny, with a high near 33. Southwest wind 5 to 10 mph.

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Snow likely before 2pm, then rain and snow likely. Cloudy, with a high near 33. Southwest wind around 5 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
A 30 percent chance of snow before 7pm. Increasing clouds, with a low around 28. Southwest wind around 5 mph becoming calm in the evening.
Sunday
A slight chance of snow before 1pm, then a chance of snow after 2pm. Cloudy, with a high near 37. Southwest wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 30%.
Sunday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 22. Calm wind becoming northwest around 5 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
M.L.King Day
Partly sunny, with a high near 33. Southwest wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
Mostly clear, with a low around 10.
Wednesday
Mostly sunny, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 14.
Friday
Mostly sunny, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.07°N 70.78°W (Elev. 33 ft)
Last Update:
12:51 pm EST Jan 17, 2026
Forecast Valid:
1pm EST Jan 17, 2026-6pm EST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation