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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:28 pm EDT Mar 19, 2026
Forecast Valid: 5pm EDT Mar 19, 2026-6pm EDT Mar 26, 2026

Tonight

S wind around 10 kt becoming WSW after midnight. Mostly cloudy, then gradually becoming clear. Seas around 3 ft.

Friday

SSW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. A chance of rain, mainly after 5pm. Seas 2 to 3 ft.

Friday Night

S wind 10 to 15 kt becoming WSW after midnight. Rain likely, mainly before midnight. Seas around 3 ft.

Saturday

NNW wind around 10 kt. Partly sunny. Seas around 3 ft.

Saturday Night

NW wind 5 to 10 kt becoming W after midnight. Mostly cloudy. Seas 2 to 3 ft.

Sunday

S wind around 10 kt. A chance of rain after 9am. Seas around 2 ft.

Sunday Night

NE wind around 10 kt. Rain likely before 1am, then rain and snow likely. Seas around 2 ft.

Monday

NNE wind 10 to 15 kt becoming N in the afternoon. Rain and snow likely before 5pm, then a chance of rain. Seas 2 to 3 ft.

Monday Night

NNW wind around 10 kt. Partly cloudy. Seas around 4 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.