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

74°F

23°C

Humidity 77%
Wind Speed SE 13 mph
Barometer 30.09 in (1019.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 13 Jul 2:55 pm EDT
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 64. South wind 5 to 10 mph.

    Low: 64 °F

    Patchy Fog

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 82. South wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Areas Fog
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68. South wind around 5 mph becoming calm.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 64. South wind 5 to 10 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 82. South wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 68. South wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89.
Thursday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 70.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 67.
Saturday
Partly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
Partly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.05°N 70.78°W (Elev. 49 ft)
Last Update:
1:45 pm EDT Jul 13, 2025
Forecast Valid:
3pm EDT Jul 13, 2025-6pm EDT Jul 20, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation