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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:37 pm EST Feb 23, 2026
Forecast Valid: 1am EST Feb 24, 2026-6pm EST Mar 2, 2026

Tuesday

WNW wind 15 to 20 kt, with gusts as high as 25 kt. Mostly sunny. Seas 5 ft subsiding to 3 ft.

Tuesday Night

WNW wind 10 to 15 kt becoming WSW after midnight. A slight chance of snow after 5am. Seas 2 to 3 ft.

Wednesday

S wind 10 to 15 kt increasing to 15 to 20 kt in the morning. Rain and snow, becoming all rain after 2pm. Seas 2 to 3 ft.

Wednesday Night

SW wind 10 to 15 kt, with gusts as high as 20 kt. A chance of rain before 7pm. Seas 2 to 3 ft.

Thursday

W wind 12 to 15 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Seas around 2 ft.

Thursday Night

SW wind 10 to 15 kt becoming NE after midnight. Snow likely, mainly between 10pm and midnight. Seas around 2 ft.

Friday

NNE wind 12 to 15 kt becoming NNW 10 to 13 kt in the morning. Winds could gust as high as 20 kt. A chance of snow before 10am. Seas around 2 ft.

Friday Night

W wind 10 to 15 kt becoming SW after midnight. Mostly clear. Seas around 2 ft.

Saturday

SSW wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas around 3 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.