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.

Light Rain Fog

64°F

18°C

Humidity 96%
Wind Speed SE 5 mph
Barometer 29.96 in (1014.8 mb)
Dewpoint 63°F (17°C)
Visibility 0.50 mi
Last update 18 Jun 3:55 am EDT
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: A 50 percent chance of showers. Areas of fog. Otherwise, cloudy, with a low around 63. South wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Chance
    Showers and
    Areas Fog

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before noon. Areas of fog before 10am. Otherwise, cloudy, with a high near 75. South wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Chance
    Showers and
    Areas Fog

  • Wednesday Night

    Wednesday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 65. South wind around 5 mph.

    Low: 65 °F

    Patchy Fog

  • Juneteenth

    Juneteenth: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 89. Southwest wind 5 to 10 mph.

    High: 89 °F

    Areas Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 64. West wind 5 to 10 mph.

    Low: 64 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of showers. Areas of fog. Otherwise, cloudy, with a low around 63. South wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 30 percent chance of showers, mainly before noon. Areas of fog before 10am. Otherwise, cloudy, with a high near 75. South wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 65. South wind around 5 mph.
Juneteenth
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 89. Southwest wind 5 to 10 mph.
Thursday Night
A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 64. West wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 59.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Mostly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
Mostly sunny and hot, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.06°N 70.81°W (Elev. 56 ft)
Last Update:
2:23 am EDT Jun 18, 2025
Forecast Valid:
4am EDT Jun 18, 2025-6pm EDT Jun 24, 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