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.

Overcast

69°F

21°C

Humidity 77%
Wind Speed S 7 mph
Barometer 29.91 in (1013.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 17 Aug 1:55 am EDT
Extended Forecast for

Portsmouth NHSimilar City Names

  • Overnight

    Overnight: Showers likely, mainly after 5am. Mostly cloudy, with a low around 65. South wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 65 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 9am. Mostly cloudy, with a high near 74. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 74 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of showers after 1am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 65. Southeast wind around 5 mph becoming calm. New precipitation amounts of less than a tenth of an inch possible.

    Low: 65 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 80. North wind around 5 mph.

    High: 80 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers after 4pm. Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Showers likely, mainly after 5am. Mostly cloudy, with a low around 65. South wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly before 9am. Mostly cloudy, with a high near 74. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 30 percent chance of showers after 1am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 65. Southeast wind around 5 mph becoming calm. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 80. North wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 63. Calm wind.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
A 30 percent chance of showers after 4pm. Mostly sunny, with a high near 82.
Thursday Night
A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 61.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 60.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 78.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 61.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth NHSimilar City Names
 43.05°N 70.78°W (Elev. 49 ft)
Last Update:
2:15 am EDT Aug 17, 2026
Forecast Valid:
2am EDT Aug 17, 2026-6pm EDT Aug 23, 2026
 
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Additional Resources

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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