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.

Partly Cloudy

85°F

29°C

Humidity 64%
Wind Speed E 3 mph
Barometer 29.99 in (1015.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 15 Jul 6:55 pm EDT
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly clear, with a low around 67. South wind around 5 mph becoming calm.

    Low: 67 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Widespread haze between 9am and 3pm. Sunny, with a high near 86. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 86 °F

    Haze

  • Wednesday Night

    Wednesday Night: Isolated showers after 2am. Patchy fog before 4am, then patchy fog after 5am. Otherwise, increasing clouds, with a low around 70. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Mostly Clear
    then Isolated
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers between 10am and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 87. South wind around 5 mph. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 72. Southwest wind around 5 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, mostly clear, with a low around 67. South wind around 5 mph becoming calm.
Wednesday
Widespread haze between 9am and 3pm. Sunny, with a high near 86. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Isolated showers after 2am. Patchy fog before 4am, then patchy fog after 5am. Otherwise, increasing clouds, with a low around 70. South wind around 5 mph. Chance of precipitation is 20%.
Thursday
A chance of showers between 10am and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 87. South wind around 5 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 72. Southwest wind around 5 mph. Chance of precipitation is 30%.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Mostly cloudy, with a low around 62.
Sunday
A 30 percent chance of showers after 8am. Partly sunny, with a high near 81.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.07°N 70.75°W (Elev. 3 ft)
Last Update:
7:24 pm EDT Jul 15, 2025
Forecast Valid:
7pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation