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.

Fair

18°F

-8°C

Humidity 41%
Wind Speed NW 16 mph
Barometer 30.42 in (1030.5 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 1 Mar 9:55 pm EST
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: Clear, with a low around 7. Wind chill values as low as zero. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 7 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 26. Wind chill values as low as zero. West wind around 5 mph.

    High: 26 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of snow between 1pm and 3pm, then rain and snow likely. Increasing clouds, with a high near 38. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 38 °F

    Mostly Sunny
    then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain and snow likely before 9pm, then rain between 9pm and midnight, then snow likely after midnight. Low around 27. South wind around 5 mph becoming calm. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 27 °F

    Rain/Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of snow before 7am. Mostly sunny, with a high near 45.

    High: 45 °F

    Chance Snow
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain. Partly sunny, with a high near 46.

    High: 46 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.

    Low: 30 °F

    Rain Likely

Detailed Forecast

Tonight
Clear, with a low around 7. Wind chill values as low as zero. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 26. Wind chill values as low as zero. West wind around 5 mph.
Monday Night
Mostly clear, with a low around 12. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A chance of snow between 1pm and 3pm, then rain and snow likely. Increasing clouds, with a high near 38. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
Rain and snow likely before 9pm, then rain between 9pm and midnight, then snow likely after midnight. Low around 27. South wind around 5 mph becoming calm. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Wednesday
A 30 percent chance of snow before 7am. Mostly sunny, with a high near 45.
Wednesday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 30.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 46.
Thursday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 10am. Cloudy, with a high near 39. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of rain. Cloudy, with a low around 30.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 52.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.05°N 70.75°W (Elev. 13 ft)
Last Update:
8:42 pm EST Mar 1, 2026
Forecast Valid:
10pm EST Mar 1, 2026-6pm EDT Mar 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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