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.

A Few Clouds

33°F

1°C

Humidity 81%
Wind Speed Calm
Barometer 30.10 in (1019.6 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 20 Mar 7:55 am EDT
Extended Forecast for

New Castle NH

  • Today

    Today: Increasing clouds, with a high near 47. West wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 47 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 36. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 46. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 46 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 30. Northwest wind around 5 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of rain before 7am, then rain and snow likely between 7am and 2pm, then rain likely after 2pm. Mostly cloudy, with a high near 43. South wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Rain likely before 9pm, then rain and snow likely between 9pm and 4am, then snow likely after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.

    Low: 30 °F

    Rain/Snow
    Likely

  • Monday

    Monday: Snow likely before 9am, then a chance of rain and snow between 9am and 3pm, then a chance of snow after 3pm. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.

    High: 38 °F

    Rain/Snow
    Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 47. West wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Tonight
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 36. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 46. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Increasing clouds, with a low around 30. Northwest wind around 5 mph.
Sunday
A chance of rain before 7am, then rain and snow likely between 7am and 2pm, then rain likely after 2pm. Mostly cloudy, with a high near 43. South wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Rain likely before 9pm, then rain and snow likely between 9pm and 4am, then snow likely after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Monday
Snow likely before 9am, then a chance of rain and snow between 9am and 3pm, then a chance of snow after 3pm. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 43.
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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:
6:21 am EDT Mar 20, 2026
Forecast Valid:
8am EDT Mar 20, 2026-6pm EDT Mar 26, 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