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

47°F

8°C

Humidity 94%
Wind Speed SW 5 mph
Barometer 29.68 in (1005.4 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 5 Apr 6:55 pm EDT
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Patchy fog before 8pm. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 35. West wind around 5 mph.

    Low: 35 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 48. West wind around 10 mph, with gusts as high as 20 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of rain showers after 2am, mixing with snow after 4am. Partly cloudy, with a low around 31. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 31 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: Snow showers likely, mainly between 11am and noon. Partly sunny, with a high near 42. North wind around 5 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Snow Showers
    Likely

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. Northwest wind around 5 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 30.

    Low: 30 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers before 8pm. Patchy fog before 8pm. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 35. West wind around 5 mph.
Monday
Mostly sunny, with a high near 48. West wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of rain showers after 2am, mixing with snow after 4am. Partly cloudy, with a low around 31. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Tuesday
Snow showers likely, mainly between 11am and noon. Partly sunny, with a high near 42. North wind around 5 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night
Mostly clear, with a low around 26. Northwest wind around 5 mph.
Wednesday
Sunny, with a high near 43.
Wednesday Night
Clear, with a low around 30.
Thursday
Sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Partly sunny, with a high near 58.
Friday Night
Mostly cloudy, with a low around 44.
Saturday
Partly sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Partly sunny, with a high near 53.
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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:
2:48 pm EDT Apr 5, 2026
Forecast Valid:
7pm EDT Apr 5, 2026-6pm EDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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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