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.

Partly Cloudy

26°F

-3°C

Humidity 48%
Wind Speed W 15 G 21 mph
Barometer 29.50 in (999.4 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 24 Feb 12:55 am EST
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: Patchy blowing snow. Mostly cloudy, with a low around 18. Northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 18 °F

    Patchy
    Blowing Snow

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30. West wind around 10 mph, with gusts as high as 25 mph.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 9. West wind around 5 mph becoming calm in the evening.

    Low: 9 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Snow before 4pm, then a chance of rain. High near 36. Light south wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Snow then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. Calm wind becoming west around 5 mph after midnight.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of snow after 7pm. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy blowing snow. Mostly cloudy, with a low around 18. Northwest wind around 15 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 30. West wind around 10 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 9. West wind around 5 mph becoming calm in the evening.
Wednesday
Snow before 4pm, then a chance of rain. High near 36. Light south wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Partly cloudy, with a low around 23. Calm wind becoming west around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
A 40 percent chance of snow after 7pm. Mostly cloudy, with a low around 18.
Friday
Mostly sunny, with a high near 37.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 37.
Sunday Night
Mostly clear, with a low around 7.
Monday
Mostly sunny, with a high near 24.
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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:
1:24 am EST Feb 24, 2026
Forecast Valid:
1am EST Feb 24, 2026-6pm EST Mar 2, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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