Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Mostly Cloudy

32°C

89°F

Humidity 64%
Wind Speed S 13 km/h
Barometer 1008.3 mb (29.77 in)
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index37°C (99°F)
Last update 17 Jul 11:55 am EDT
Extended Forecast for

Portsmouth NH

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly before 4pm.  Partly sunny, with a high near 31. Heat index values as high as 35. South wind 15 to 20 km/h, with gusts as high as 35 km/h.  Chance of precipitation is 60%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    High: 31 °C

    Showers
    Likely

  • Tonight

    Tonight: Partly cloudy, with a low around 19. Southwest wind 10 to 15 km/h, with gusts as high as 30 km/h.

    Low: 19 °C

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 28. Northwest wind 15 to 25 km/h, with gusts as high as 40 km/h.

    High: 28 °C

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 15. Calm wind.

    Low: 15 °C

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 28. West wind 5 to 10 km/h becoming south in the afternoon.

    High: 28 °C

    Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 2am.  Mostly cloudy, with a low around 18. Chance of precipitation is 60%.

    Low: 18 °C

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers likely, mainly before 8am.  Partly sunny, with a high near 27. Chance of precipitation is 60%.

    High: 27 °C

    Showers
    Likely

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 16.

    Low: 16 °C

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 26.

    High: 26 °C

    Sunny

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly before 4pm. Partly sunny, with a high near 31. Heat index values as high as 35. South wind 15 to 20 km/h, with gusts as high as 35 km/h. Chance of precipitation is 60%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Tonight
Partly cloudy, with a low around 19. Southwest wind 10 to 15 km/h, with gusts as high as 30 km/h.
Friday
Sunny, with a high near 28. Northwest wind 15 to 25 km/h, with gusts as high as 40 km/h.
Friday Night
Mostly clear, with a low around 15. Calm wind.
Saturday
Sunny, with a high near 28. West wind 5 to 10 km/h becoming south in the afternoon.
Saturday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.
Sunday
Showers likely, mainly before 8am. Partly sunny, with a high near 27. Chance of precipitation is 60%.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 26.
Monday Night
Mostly clear, with a low around 14.
Tuesday
Mostly sunny, with a high near 27.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Mostly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.07°N 70.78°W (Elev. 33 m)
8:18 am EDT Jul 17, 2025
12pm EDT Jul 17, 2025-6pm EDT Jul 23, 2025
 
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Additional Resources

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