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

27°F

-3°C

Humidity 36%
Wind Speed NE 7 mph
Barometer 30.36 in (1028.5 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 28 Mar 8:55 am EDT
Extended Forecast for

New Castle NH

  • Today

    Today: Mostly sunny, with a high near 35. North wind around 5 mph becoming east in the afternoon.

    High: 35 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 24. South wind around 5 mph becoming northwest after midnight.

    Low: 24 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 45. Southwest wind 5 to 10 mph.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35. Southwest wind 5 to 10 mph.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57. Southwest wind 5 to 10 mph.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of rain. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 5pm. Partly sunny, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Chance Rain
    then Rain
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 35. North wind around 5 mph becoming east in the afternoon.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 24. South wind around 5 mph becoming northwest after midnight.
Sunday
Mostly sunny, with a high near 45. Southwest wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 35. Southwest wind 5 to 10 mph.
Monday
Partly sunny, with a high near 57. Southwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 54.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 43.
Wednesday
Rain likely, mainly after 5pm. Partly sunny, with a high near 66. Chance of precipitation is 60%.
Wednesday Night
Rain likely, mainly before 9pm. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 39.
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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:
7:00 am EDT Mar 28, 2026
Forecast Valid:
9am EDT Mar 28, 2026-6pm EDT Apr 3, 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