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.

Fair

60°F

16°C

Humidity 93%
Wind Speed W 3 mph
Barometer 30.21 in (1023.2 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 6 Oct 2:55 am EDT
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: Clear, with a low around 54. Southwest wind around 5 mph.

    Low: 54 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 83. Southwest wind 5 to 10 mph.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Southwest wind around 5 mph.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 55. Southwest wind 5 to 10 mph. Chance of precipitation is 70%.

    Low: 55 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Rain before noon, then showers likely, mainly between noon and 3pm. High near 69. Chance of precipitation is 80%.

    High: 69 °F

    Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 8pm. Mostly clear, with a low around 40.

    Low: 40 °F

    Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Areas of frost after 5am. Otherwise, clear, with a low around 37.

    Low: 37 °F

    Clear then
    Areas Frost

Detailed Forecast

Overnight
Clear, with a low around 54. Southwest wind around 5 mph.
Monday
Sunny, with a high near 83. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 56. Southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 55. Southwest wind 5 to 10 mph. Chance of precipitation is 70%.
Wednesday
Rain before noon, then showers likely, mainly between noon and 3pm. High near 69. Chance of precipitation is 80%.
Wednesday Night
A 30 percent chance of showers before 8pm. Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 61.
Thursday Night
Areas of frost after 5am. Otherwise, clear, with a low around 37.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 64.
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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:
1:33 am EDT Oct 6, 2025
Forecast Valid:
3am EDT Oct 6, 2025-6pm EDT Oct 12, 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