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

39°F

4°C

Humidity 94%
Wind Speed Calm
Barometer 29.84 in (1010.8 mb)
Dewpoint 38°F (3°C)
Visibility 3.00 mi
Last update 1 Apr 1:55 am EDT
Extended Forecast for

New Castle NH

  • Overnight

    Overnight: A 30 percent chance of showers, mainly before 4am. Patchy fog. Otherwise, cloudy, with a low around 38. South wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A 40 percent chance of showers, mainly before 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 58. Southwest wind around 5 mph becoming northeast in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 10pm, then a chance of showers after midnight. Increasing clouds, with a low around 34. Northeast wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of rain showers and sleet before 2pm, then a chance of rain showers. Cloudy, with a high near 39. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 39 °F

    Chance
    Rain/Sleet

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Cloudy, with a low around 35. East wind around 5 mph.

    Low: 35 °F

    Chance Rain

  • Friday

    Friday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 9pm. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly before 4am. Patchy fog. Otherwise, cloudy, with a low around 38. South wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 40 percent chance of showers, mainly before 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 58. Southwest wind around 5 mph becoming northeast in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A slight chance of showers before 10pm, then a chance of showers after midnight. Increasing clouds, with a low around 34. Northeast wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of rain showers and sleet before 2pm, then a chance of rain showers. Cloudy, with a high near 39. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 35. East wind around 5 mph.
Friday
Mostly cloudy, with a high near 58.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 58.
Saturday Night
A 40 percent chance of showers after 9pm. Mostly cloudy, with a low around 38.
Sunday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.07°N 70.72°W (Elev. 26 ft)
Last Update:
2:27 am EDT Apr 1, 2026
Forecast Valid:
2am EDT Apr 1, 2026-6pm EDT Apr 7, 2026
 
Forecast Discussion
 
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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