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.

Light Rain Fog/Mist

57°F

14°C

Humidity 94%
Wind Speed E 6 mph
Barometer 30.02 in (1016.8 mb)
Dewpoint 55°F (13°C)
Visibility 1.50 mi
Last update 20 Sep 7:55 pm EDT
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: Showers, mainly before 1am. Areas of fog before 2am. Low around 53. East wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Showers and
    Areas Fog
    then Showers
    Likely and
    Areas Fog

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 64. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 64 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 50. Light northeast wind increasing to 5 to 10 mph after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49. Northeast wind 5 to 10 mph.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers, mainly before 1am. Areas of fog before 2am. Low around 53. East wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 64. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 50. Light northeast wind increasing to 5 to 10 mph after midnight.
Tuesday
Mostly sunny, with a high near 61. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 49. Northeast wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 61.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 52.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 62. Breezy.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 53.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.04°N 70.72°W (Elev. 3 ft)
Last Update:
6:45 pm EDT Sep 20, 2026
Forecast Valid:
8pm EDT Sep 20, 2026-6pm EDT Sep 27, 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