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

48°F

9°C

Humidity 95%
Wind Speed S 3 mph
Barometer 29.72 in (1006.7 mb)
Dewpoint 47°F (8°C)
Visibility 1.25 mi
Last update 30 Apr 9:55 pm EDT
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. Calm wind becoming northwest around 5 mph.

    Low: 42 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 58. Northwest wind around 5 mph.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. Northwest wind around 5 mph becoming calm.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 53. Calm wind becoming south around 5 mph in the afternoon.

    High: 53 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 9pm, then a chance of showers after 2am. Mostly cloudy, with a low around 42. South wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 42 °F

    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers before 3pm. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 42. Calm wind becoming northwest around 5 mph.
Friday
Sunny, with a high near 58. Northwest wind around 5 mph.
Friday Night
Partly cloudy, with a low around 41. Northwest wind around 5 mph becoming calm.
Saturday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 53. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A chance of showers before 9pm, then a chance of showers after 2am. Mostly cloudy, with a low around 42. South wind around 5 mph becoming calm. Chance of precipitation is 30%.
Sunday
A 50 percent chance of showers before 3pm. Mostly cloudy, with a high near 53.
Sunday Night
Mostly clear, with a low around 39.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 64.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.
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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:
7:43 pm EDT Apr 30, 2026
Forecast Valid:
10pm EDT Apr 30, 2026-6pm EDT May 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