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4NM E Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:06 pm EST Nov 13, 2025
Forecast Valid: 7pm EST Nov 13, 2025-6pm EST Nov 20, 2025

Tonight

WNW wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Seas around 1 ft.

Friday

NW wind around 10 kt. Mostly sunny. Seas around 1 ft.

Friday Night

NW wind around 10 kt. Mostly clear. Seas around 1 ft.

Saturday

WNW wind around 10 kt. Increasing clouds. Seas around 1 ft.

Saturday Night

WSW wind 5 to 10 kt becoming SSW after midnight. Rain, mainly after 11pm. Seas around 1 ft.

Sunday

SW wind 10 to 13 kt becoming WNW 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Rain likely, mainly before 10am. Seas around 1 ft.

Sunday Night

W wind around 15 kt, with gusts as high as 20 kt. A chance of rain before midnight. Seas around 1 ft.

Monday

W wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas around 1 ft.

Monday Night

W wind 10 to 15 kt, with gusts as high as 20 kt. Mostly clear. Seas around 1 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.