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.

Overcast

62°F

17°C

Humidity 88%
Wind Speed Calm
Barometer 30.04 in (1017.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 1 Sep 2:55 am EDT
Extended Forecast for

New Castle NH

  • Overnight

    Overnight: Mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Showers likely before 1pm, then rain between 1pm and 2pm, then showers likely after 2pm. High near 70. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 70 °F

    Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 60. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 71. East wind around 5 mph.

    High: 71 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 11pm. Cloudy, with a low around 62. Southeast wind around 5 mph. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers. High near 76. Chance of precipitation is 80%.

    High: 76 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 7pm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 60. Calm wind.
Tuesday
Showers likely before 1pm, then rain between 1pm and 2pm, then showers likely after 2pm. High near 70. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 60. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly cloudy, with a high near 71. East wind around 5 mph.
Wednesday Night
Showers likely, mainly after 11pm. Cloudy, with a low around 62. Southeast wind around 5 mph. Chance of precipitation is 70%.
Thursday
Showers. High near 76. Chance of precipitation is 80%.
Thursday Night
Showers likely, mainly before 7pm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 57.
Labor Day
Sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.05°N 70.75°W (Elev. 13 ft)
Last Update:
2:47 am EDT Sep 1, 2026
Forecast Valid:
3am EDT Sep 1, 2026-6pm EDT Sep 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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