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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:22 pm EDT Mar 25, 2026
Forecast Valid: 6pm EDT Mar 25, 2026-6pm EDT Apr 1, 2026

Tonight

SSW wind 15 to 20 kt, with gusts as high as 25 kt. A slight chance of rain before 1am, then a chance of rain after 2am. Seas 2 to 3 ft.

Thursday

SSW wind 15 to 20 kt. A chance of rain, mainly before 10am. Seas 3 to 4 ft.

Thursday Night

SSW wind 10 to 15 kt becoming W after midnight. Winds could gust as high as 20 kt. Rain, mainly after 8pm. Seas 3 to 4 ft.

Friday

N wind 10 to 15 kt. Showers likely, mainly before 9am. Seas 2 to 3 ft.

Friday Night

N wind 10 to 15 kt, with gusts as high as 25 kt. Partly cloudy. Seas around 2 ft.

Saturday

N wind 10 to 15 kt becoming NE 5 to 8 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Saturday Night

W wind around 10 kt. Mostly clear. Seas around 2 ft.

Sunday

WSW wind 10 to 15 kt. Mostly sunny. Seas around 2 ft.

Sunday Night

SW wind 10 to 15 kt, with gusts as high as 25 kt. Partly cloudy. Seas around 2 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.