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

64°F

18°C

Humidity 40%
Wind Speed SE 10 mph
Barometer 30.01 in (1016.5 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 10 Apr 5:55 pm EDT
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: Showers likely, mainly after 2am. Mostly cloudy, with a low around 43. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Sunny, with a high near 52. Northwest wind around 10 mph, with gusts as high as 25 mph.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 35. Northwest wind around 5 mph.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 50. Calm wind becoming south around 5 mph in the afternoon.

    High: 50 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Showers likely, mainly after 11pm. Cloudy, with a low around 39. South wind 5 to 10 mph. Chance of precipitation is 70%.

    Low: 39 °F

    Showers
    Likely

  • Monday

    Monday: A 40 percent chance of showers. Mostly cloudy, with a high near 61.

    High: 61 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 9pm. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers likely, mainly after 2am. Mostly cloudy, with a low around 43. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 52. Northwest wind around 10 mph, with gusts as high as 25 mph.
Saturday Night
Clear, with a low around 35. Northwest wind around 5 mph.
Sunday
Increasing clouds, with a high near 50. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Showers likely, mainly after 11pm. Cloudy, with a low around 39. South wind 5 to 10 mph. Chance of precipitation is 70%.
Monday
A 40 percent chance of showers. Mostly cloudy, with a high near 61.
Monday Night
A 30 percent chance of showers before 9pm. Mostly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 47.
Wednesday
A 30 percent chance of showers before 9am. Mostly cloudy, with a high near 62.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50.
Thursday
Partly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
Partly sunny, with a high near 60.
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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:
2:34 pm EDT Apr 10, 2026
Forecast Valid:
7pm EDT Apr 10, 2026-6pm EDT Apr 17, 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