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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:53 pm EST Feb 24, 2026
Forecast Valid: 6pm EST Feb 24, 2026-6pm EST Mar 3, 2026

Tonight

WNW wind 5 to 10 kt becoming SW after midnight. Partly cloudy. Seas 7 ft subsiding to 5 ft.

Wednesday

S wind 5 to 10 kt. Snow, mainly before 2pm. Seas 3 to 4 ft.

Wednesday Night

SSW wind 5 to 10 kt becoming W after midnight. Partly cloudy. Seas 2 to 3 ft.

Thursday

W wind around 10 kt. Sunny. Seas 1 to 2 ft.

Thursday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

Friday

Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.

Friday Night

SW wind 5 to 10 kt. Partly cloudy. Seas 1 to 2 ft.

Saturday

SSW wind around 10 kt. Mostly sunny. Seas around 2 ft.

Saturday Night

SW wind around 10 kt becoming W after midnight. 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.