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.

Fog/Mist

65°F

18°C

Humidity 96%
Wind Speed E 3 mph
Barometer 29.79 in (1009.0 mb)
Dewpoint 64°F (18°C)
Visibility 0.75 mi
Last update 19 Jun 4:55 am EDT
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: A 20 percent chance of showers. Areas of fog. Otherwise, mostly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Slight Chance
    Showers and
    Areas Fog

  • Juneteenth

    Juneteenth: Areas of fog before 10am. Otherwise, partly sunny, with a high near 85. South wind 5 to 10 mph.

    High: 85 °F

    Areas Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 67. Southwest wind around 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 82. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 82 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. West wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before 8am. Mostly sunny, with a high near 82.

    High: 82 °F

    Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Areas of fog. Otherwise, mostly cloudy, with a low around 65. Calm wind.
Juneteenth
Areas of fog before 10am. Otherwise, partly sunny, with a high near 85. South wind 5 to 10 mph.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 67. Southwest wind around 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 82. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Friday Night
Mostly clear, with a low around 61. West wind around 5 mph.
Saturday
Sunny, with a high near 82.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 63.
Sunday
A 30 percent chance of showers before 8am. Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Sunny and hot, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 85.
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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:
2:08 am EDT Jun 19, 2025
Forecast Valid:
5am EDT Jun 19, 2025-6pm EDT Jun 25, 2025
 
Forecast Discussion
 
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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