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

38°F

3°C

Humidity 53%
Wind Speed W 6 mph
Barometer 30.39 in (1029.4 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 12 Apr 2:55 am EDT
Extended Forecast for

New Castle NH

  • Overnight

    Overnight: Clear, with a low around 35. Northwest wind around 5 mph.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 48. Northwest wind 5 to 10 mph becoming south in the afternoon.

    High: 48 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Rain. Low around 40. South wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain

  • Monday

    Monday: A chance of rain before 7am, then a chance of showers after noon. Mostly cloudy, with a high near 61. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 61 °F

    Chance Rain

  • Monday Night

    Monday Night: A 30 percent chance of showers before 9pm. Partly cloudy, with a low around 52. Southwest wind 5 to 10 mph.

    Low: 52 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers between 7pm and 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 35. Northwest wind around 5 mph.
Sunday
Increasing clouds, with a high near 48. Northwest wind 5 to 10 mph becoming south in the afternoon.
Sunday Night
Rain. Low around 40. South wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
A chance of rain before 7am, then a chance of showers after noon. Mostly cloudy, with a high near 61. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday Night
A 30 percent chance of showers before 9pm. Partly cloudy, with a low around 52. Southwest wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
A chance of showers between 7pm and 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, with a high near 65.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 47.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 60.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Friday
Partly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 59.
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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:
2:16 am EDT Apr 12, 2026
Forecast Valid:
3am EDT Apr 12, 2026-6pm EDT Apr 18, 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