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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

New Castle NH

  • Overnight

    Overnight: A 20 percent chance of rain after 5am. Areas of fog. Otherwise, cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Slight Chance
    Rain and
    Areas Fog

  • Sunday

    Sunday: Rain, with thunderstorms also possible after 11am. Areas of fog before noon. High near 49. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 49 °F

    Rain and
    Areas Fog

  • Sunday Night

    Sunday Night: Rain likely, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 33. West wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Rain Likely
    then Clear

  • Monday

    Monday: A chance of showers between 2pm and 5pm. Mostly sunny, with a high near 48. West wind around 5 mph. Chance of precipitation is 30%.

    High: 48 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. North wind around 5 mph.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain after 5am. Areas of fog. Otherwise, cloudy, with a low around 42. Calm wind.
Sunday
Rain, with thunderstorms also possible after 11am. Areas of fog before noon. High near 49. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 33. West wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers between 2pm and 5pm. Mostly sunny, with a high near 48. West wind around 5 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 30. North wind around 5 mph.
Tuesday
Sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 52.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Partly sunny, with a high near 51.
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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:
2:31 am EDT Apr 19, 2026
Forecast Valid:
4am EDT Apr 19, 2026-6pm EDT Apr 25, 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