Portsmouth
Rockingham County
New Hampshire
Longitude W70.8
Latitude N43.1
Tides

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Watches, Warnings and Advisories
New Hampshire
Maine
Gulf of Maine

Conditions and Forecasts
Isles of Shoals
Current conditions
New England

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Weather Channel
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Phases of the Moon

Current phase
Conditions
Updated at 12:55 AM
| Temp (F) | Weather | Wind (mph) | Visibility | Humidity (%) | Dew Point (F) | Pressure (in.) |
| 77.4 F | partly cloudy | from the SW (230 degrees) at 6 MPH | 8 mile(s) | 72% | 68.0 F | 29.88 in. |
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Forecast |
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Hazardous weather condition(s): Overnight: Patchy fog. Otherwise, mostly clear, with a low around 69. Southwest wind around 5 mph. Friday: A chance of showers after 2pm. Patchy fog before 8am. Otherwise, increasing clouds, with a high near 82. Southwest wind at 8 mph becoming southeast. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch possible. Friday Night: Tropical storm conditions possible. A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 8pm. Low around 65. East wind 17 to 22 mph becoming north. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible. Saturday: A chance of rain before 2pm. Partly cloudy, with a high near 79. West wind between 10 and 16 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch possible. Saturday Night: Mostly clear, with a low around 54. West wind around 9 mph. Sunday: A slight chance of showers. Partly cloudy, with a high near 74. Chance of precipitation is 20%. Sunday Night: Clear, with a low around 51. Labor Day: Sunny, with a high near 76. Monday Night: Mostly clear, with a low around 54. Tuesday: Sunny, with a high near 75. Tuesday Night: Mostly clear, with a low around 54. Wednesday: A chance of showers. Partly cloudy, with a high near 74. Chance of precipitation is 30%. Wednesday Night: A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%. Thursday: A chance of showers. Partly cloudy, with a high near 74. Chance of precipitation is 30%. |
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Marine Forecast | |
| tropical storm watch in effect | |
| tonight | sw winds 10 to 15 kt with a few gusts up to 20 kt. seas 3 to 6 ft...partly due to a se swell. |
| fri | s winds 10 to 15 kt. seas 4 to 7 ft. |
| fri night | tropical storm conditions possible. e winds 20 to 30 kt...becoming ne 30 to 40 kt after midnight. seas 5 to 8 ft...building to 8 to 11 ft after midnight. rain with a chance of tstms. vsby 1 to 3 nm. |
| sat | nw winds 30 to 40 kt...becoming sw 15 to 20 kt with gusts up to 25 kt in the afternoon. seas 9 to 12 ft. rain likely in the morning with vsby 1 to 3 nm. |
| sat night | w winds 10 to 20 kt with gusts up to 25 kt. seas 6 to 9 ft...subsiding to 5 to 7 ft after midnight. |
| sun | sw winds 15 to 20 kt. seas 4 to 7 ft. |
| sun night | sw winds 10 to 15 kt. seas 4 to 6 ft. a chance of showers. vsby 1 to 3 nm. |
| mon | sw winds 5 to 15 kt. seas 3 to 5 ft. |
| tue | w winds 5 to 10 kt. seas 2 to 3 ft. winds and seas higher in and near tstms. |
Links
National Hurricane Center
Federal Emergency Management Agency (FEMA)
NOAA Weather Network
NH Climate Data