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.

Overcast

54°F

12°C

Humidity 69%
Wind Speed SE 6 mph
Barometer 29.86 in (1011.5 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 2 May 12:55 pm EDT
Extended Forecast for

New Castle NH

  • This Afternoon

    This Afternoon: A 50 percent chance of showers, mainly before 5pm. Mostly cloudy, with a high near 52. South wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers after 11pm. Cloudy, with a low around 41. Southeast wind around 5 mph becoming calm after midnight. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 56. North wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40. West wind around 5 mph.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 63. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Mostly Sunny

  • Monday Night

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

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 50 percent chance of showers, mainly before 5pm. Mostly cloudy, with a high near 52. South wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 30 percent chance of showers after 11pm. Cloudy, with a low around 41. Southeast wind around 5 mph becoming calm after midnight. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 40 percent chance of showers before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 56. North wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly clear, with a low around 40. West wind around 5 mph.
Monday
Mostly sunny, with a high near 63. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 65.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Thursday
Showers likely. Mostly cloudy, with a high near 57. Chance of precipitation is 70%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 57.
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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:
6:40 am EDT May 2, 2026
Forecast Valid:
1pm EDT May 2, 2026-6pm EDT May 8, 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