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

47°F

8°C

Humidity 94%
Wind Speed NW 9 mph
Barometer 29.88 in (1012.1 mb)
Dewpoint 46°F (8°C)
Visibility 1.00 mi
Wind Chill43°F (6°C)
Last update 13 Oct 10:55 pm EDT
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: A 30 percent chance of rain and thunderstorms, mainly before midnight. Patchy fog. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 55. Southwest wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 73. West wind 5 to 10 mph.

    High: 73 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. Northwest wind around 5 mph.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 60. Northwest wind around 5 mph.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 4am. Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers, mainly after 8am. High near 60. Chance of precipitation is 100%.

    High: 60 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 11pm. Mostly cloudy, with a low around 40. Breezy. Chance of precipitation is 70%.

    Low: 40 °F

    Showers
    Likely then
    Chance
    Showers and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 47. Breezy.

    High: 47 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of rain and thunderstorms, mainly before midnight. Patchy fog. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 55. Southwest wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 73. West wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 46. Northwest wind around 5 mph.
Thursday
Sunny, with a high near 60. Northwest wind around 5 mph.
Thursday Night
A 30 percent chance of showers after 4am. Mostly cloudy, with a low around 45. Calm wind.
Friday
Showers, mainly after 8am. High near 60. Chance of precipitation is 100%.
Friday Night
Showers likely, mainly before 11pm. Mostly cloudy, with a low around 40. Breezy. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 47. Breezy.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 39.
Monday
Mostly sunny, with a high near 59.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly sunny, 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:
2:31 pm EDT Oct 13, 2026
Forecast Valid:
11pm EDT Oct 13, 2026-6pm EDT Oct 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation