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.

Overcast

38°F

3°C

Humidity 59%
Wind Speed W 13 G 18 mph
Barometer 29.68 in (1005.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 28 Nov 1:55 pm EST
Extended Forecast for

Portsmouth NH

  • This Afternoon

    This Afternoon: A chance of rain and snow showers before 4pm, then a slight chance of snow showers. Partly sunny, with a high near 42. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 42 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: Partly cloudy, with a low around 28. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 41. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 41 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 25. West wind around 5 mph becoming calm.

    Low: 25 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 49. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 49 °F

    Cloudy then
    Rain

  • Sunday Night

    Sunday Night: Rain, mainly before 1am. Low around 32. Chance of precipitation is 80%.

    Low: 32 °F

    Rain

  • Monday

    Monday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Snow likely after 10am, mixing with rain after 4pm. Cloudy, with a high near 38. Chance of precipitation is 70%.

    High: 38 °F

    Chance Snow
    then
    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
A chance of rain and snow showers before 4pm, then a slight chance of snow showers. Partly sunny, with a high near 42. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tonight
Partly cloudy, with a low around 28. West wind around 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 41. West wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Increasing clouds, with a low around 25. West wind around 5 mph becoming calm.
Sunday
Rain, mainly after 1pm. High near 49. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Sunday Night
Rain, mainly before 1am. Low around 32. Chance of precipitation is 80%.
Monday
Sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Snow likely after 10am, mixing with rain after 4pm. Cloudy, with a high near 38. Chance of precipitation is 70%.
Tuesday Night
Rain and snow likely, becoming all snow after 10pm, then gradually ending. Mostly cloudy, with a low around 25. Chance of precipitation is 70%.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 39.
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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:
2:12 pm EST Nov 28, 2025
Forecast Valid:
2pm EST Nov 28, 2025-6pm EST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation