National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Mostly Cloudy

80°F

27°C

Humidity 64%
Wind Speed SE 7 mph
Barometer 30.07 in (1018.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 30 Jun 10:55 am EDT
Extended Forecast for

New Castle NH

Extreme Heat Watch July 1, 12:00pm until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 83. South wind 5 to 10 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 92. Heat index values as high as 98. Southwest wind around 5 mph.

    High: 92 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 73. Southwest wind around 5 mph.

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 95. West wind around 5 mph.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Independence Day

    Independence Day: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 83. South wind 5 to 10 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny and hot, with a high near 92. Heat index values as high as 98. Southwest wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 73. Southwest wind around 5 mph.
Thursday
Sunny and hot, with a high near 95. West wind around 5 mph.
Thursday Night
Mostly clear, with a low around 75.
Friday
Sunny and hot, with a high near 96.
Friday Night
Mostly clear, with a low around 70.
Independence Day
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Partly sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.07°N 70.72°W (Elev. 26 ft)
Last Update:
6:48 am EDT Jun 30, 2026
Forecast Valid:
12pm EDT Jun 30, 2026-6pm EDT Jul 6, 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