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

27°F

-3°C

Humidity 48%
Wind Speed NW 18 G 32 mph
Barometer 29.97 in (1015.2 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 8 Dec 2:55 am EST
Extended Forecast for

Portsmouth NH

  • Overnight

    Overnight: Mostly clear, with a low around 18. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 18 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 24. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 24 °F

    Sunny and
    Blustery then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 6. Wind chill values as low as -1. Northwest wind 5 to 10 mph.

    Low: 6 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 29. Wind chill values as low as -1. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 29 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 22. South wind around 5 mph.

    Low: 22 °F

    Chance Snow

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 43. Chance of precipitation is 70%.

    High: 43 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain before 2am. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 18. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 24. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 6. Wind chill values as low as -1. Northwest wind 5 to 10 mph.
Tuesday
Increasing clouds, with a high near 29. Wind chill values as low as -1. Light west wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22. South wind around 5 mph.
Wednesday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 43. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of rain before 2am. Mostly cloudy, with a low around 29.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 34.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 16.
Sunday
Mostly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NH
 43.07°N 70.78°W (Elev. 33 ft)
Last Update:
12:52 am EST Dec 8, 2025
Forecast Valid:
3am EST Dec 8, 2025-6pm EST Dec 14, 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