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.

Mostly Cloudy

60°F

16°C

Humidity 33%
Wind Speed SE 10 mph
Barometer 30.12 in (1020.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 26 Apr 4:55 pm EDT
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: Partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 56. Calm wind becoming east around 5 mph in the afternoon.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 38. Calm wind.

    Low: 38 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50. East wind 5 to 10 mph.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 40. Northeast wind around 5 mph.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 9am, then a chance of showers after noon. Mostly cloudy, with a high near 50. Chance of precipitation is 30%.

    High: 50 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly between midnight and 5am, then rain likely after 5am. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Showers
    Likely

  • Thursday

    Thursday: Rain. High near 49. Chance of precipitation is 80%.

    High: 49 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before 11pm, then a chance of showers after 2am. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.

    Low: 43 °F

    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. Calm wind.
Monday
Sunny, with a high near 56. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Clear, with a low around 38. Calm wind.
Tuesday
Sunny, with a high near 50. East wind 5 to 10 mph.
Tuesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 40. Northeast wind around 5 mph.
Wednesday
A chance of showers before 9am, then a chance of showers after noon. Mostly cloudy, with a high near 50. Chance of precipitation is 30%.
Wednesday Night
Showers likely, mainly between midnight and 5am, then rain likely after 5am. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Thursday
Rain. High near 49. Chance of precipitation is 80%.
Thursday Night
Rain likely, mainly before 11pm, then a chance of showers after 2am. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 52.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 40.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 51.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Partly sunny, with a high near 52.
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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:
2:22 pm EDT Apr 26, 2026
Forecast Valid:
5pm EDT Apr 26, 2026-6pm EDT May 3, 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