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.

Partly Cloudy

93°F

34°C

Humidity 33%
Wind Speed SW 3 mph
Barometer 30.01 in (1016.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 12 Aug 11:55 am EDT
Extended Forecast for

Portsmouth NH

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 93. South wind around 5 mph.

    High: 93 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 67. South wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 90. South wind 5 to 10 mph.

    High: 90 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 69. Southwest wind around 5 mph.

    Low: 69 °F

    Mostly Cloudy

  • Thursday

    Thursday: Scattered showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 87. Southwest wind around 5 mph. Chance of precipitation is 50%.

    High: 87 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms before 9pm. Mostly clear, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Scattered
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 93. South wind around 5 mph.
Tonight
Clear, with a low around 67. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 90. South wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 69. Southwest wind around 5 mph.
Thursday
Scattered showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 87. Southwest wind around 5 mph. Chance of precipitation is 50%.
Thursday Night
Scattered showers and thunderstorms before 9pm. Mostly clear, with a low around 64. Chance of precipitation is 30%.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Sunny and hot, with a high near 90.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.05°N 70.78°W (Elev. 49 ft)
Last Update:
8:13 am EDT Aug 12, 2025
Forecast Valid:
12pm EDT Aug 12, 2025-6pm EDT Aug 18, 2025
 
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