Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Overcast

60°F

16°C

Humidity 86%
Wind Speed S 13 G 22 mph
Barometer 29.24 in (990.4 mb)
Dewpoint 56°F (13°C)
Visibility 7.00 mi
Last update 17 Mar 2:55 am EDT
Extended Forecast for

New Castle NH

Flood Watch March 17, 03:21am until March 17, 02:00pm
Wind Advisory March 17, 03:21am until March 17, 08:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch March 17, 03:21am until March 17, 02:00pm
    Wind Advisory March 17, 03:21am until March 17, 08:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 51 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly before 7am.  Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 35 by 5pm. Breezy, with a west wind 15 to 25 mph, with gusts as high as 35 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Breezy.
    Chance
    Showers then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 18. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 18 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 33. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 33 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25. South wind 5 to 10 mph.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

Detailed Forecast

Overnight
Showers, mainly before 5am. Steady temperature around 51. Breezy, with a south wind around 25 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 30 percent chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 35 by 5pm. Breezy, with a west wind 15 to 25 mph, with gusts as high as 35 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly clear, with a low around 18. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Wednesday
Increasing clouds, with a high near 33. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 25. South wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 40.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 47.
Friday Night
A chance of rain after 3am, mixing with snow after 5am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Saturday
A chance of rain and snow before 11am, then a chance of rain. Partly sunny, with a high near 45. Chance of precipitation is 40%.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 28.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.07°N 70.72°W (Elev. 26 ft)
2:51 am EDT Mar 17, 2026
3am EDT Mar 17, 2026-6pm EDT Mar 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database