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.

Partly Cloudy

40°F

4°C

Humidity 47%
Wind Speed NW 7 mph
Barometer 30.05 in (1017.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 6 Apr 8:55 pm EDT
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: Mostly clear, with a low around 31. Northwest wind around 5 mph becoming calm.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain and snow showers likely before 2pm, then a chance of rain showers. Partly sunny, with a high near 43. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers before 7pm, then a chance of snow showers between 7pm and 8pm. Mostly cloudy, then gradually becoming clear, with a low around 25. Northwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 25 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 41. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 30. Southwest wind around 5 mph.

    Low: 30 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 31. Northwest wind around 5 mph becoming calm.
Tuesday
Rain and snow showers likely before 2pm, then a chance of rain showers. Partly sunny, with a high near 43. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday Night
A chance of rain and snow showers before 7pm, then a chance of snow showers between 7pm and 8pm. Mostly cloudy, then gradually becoming clear, with a low around 25. Northwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 41. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 30. Southwest wind around 5 mph.
Thursday
Sunny, with a high near 48.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Sunny, with a high near 52.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Mostly cloudy, with a high near 62.
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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:
2:40 pm EDT Apr 6, 2026
Forecast Valid:
9pm EDT Apr 6, 2026-6pm EDT Apr 13, 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