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.

Patches Fog

69°F

21°C

Humidity 96%
Wind Speed Calm
Barometer 29.96 in (1014.7 mb)
Dewpoint 67°F (19°C)
Visibility 0.50 mi
Last update 28 Aug 6:55 am EDT
Extended Forecast for

Portsmouth NHSimilar City Names

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Calm wind becoming northwest around 5 mph.

    Low: 57 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. South wind around 5 mph becoming calm.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 85. Southwest wind around 5 mph.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers after 7am. Partly sunny, with a high near 74.

    High: 74 °F

    Chance
    Showers

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Calm wind becoming northwest around 5 mph.
Saturday
Sunny, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 58. South wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 85. Southwest wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 78.
Monday Night
Mostly cloudy, with a low around 60.
Tuesday
A 50 percent chance of showers after 7am. Partly sunny, with a high near 74.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 76.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 62.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NHSimilar City Names
 43.05°N 70.78°W (Elev. 49 ft)
Last Update:
6:45 am EDT Aug 28, 2026
Forecast Valid:
7am EDT Aug 28, 2026-6pm EDT Sep 3, 2026
 
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