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.

A Few Clouds

61°F

16°C

Humidity 80%
Wind Speed Calm
Barometer 29.88 in (1012.1 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 14 Apr 2:55 am EDT
Extended Forecast for

New Castle NH

  • Overnight

    Overnight: Partly cloudy, with a low around 52. West wind around 5 mph.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 62. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Patchy fog between 9pm and 1am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 47. Southeast wind around 5 mph becoming northwest after midnight. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 59. East wind around 5 mph.

    High: 59 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly between 10pm and midnight. Cloudy, with a low around 46. East wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 59.

    High: 59 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

  • Friday

    Friday: Showers likely, mainly after 5pm. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 52. West wind around 5 mph.
Tuesday
A slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 62. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Patchy fog between 9pm and 1am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 47. Southeast wind around 5 mph becoming northwest after midnight. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 59. East wind around 5 mph.
Wednesday Night
Showers likely, mainly between 10pm and midnight. Cloudy, with a low around 46. East wind around 5 mph becoming calm. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 59.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49.
Friday
Showers likely, mainly after 5pm. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 43.
Saturday
Mostly cloudy, with a high near 51.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 43.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 57.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.07°N 70.72°W (Elev. 26 ft)
Last Update:
2:52 am EDT Apr 14, 2026
Forecast Valid:
3am EDT Apr 14, 2026-6pm EDT Apr 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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