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10NM S Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:49 pm EST Nov 22, 2025
Forecast Valid: 2pm EST Nov 22, 2025-6pm EST Nov 28, 2025

This Afternoon

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

Tonight

NW wind 7 to 10 kt decreasing to 5 to 8 kt after midnight. Mostly clear. Seas around 1 ft.

Sunday

Variable winds 5 kt or less. Increasing clouds. Seas around 1 ft.

Sunday Night

SW wind 5 to 10 kt becoming NW after midnight. Cloudy, then gradually becoming partly cloudy. Seas around 1 ft.

Monday

WNW wind around 10 kt. Sunny. Seas around 1 ft.

Monday Night

WNW wind 5 to 10 kt becoming WSW after midnight. Partly cloudy. Seas around 1 ft.

Tuesday

SSW wind 5 to 10 kt. A chance of rain after 5pm. Seas around 1 ft.

Tuesday Night

S wind 5 to 10 kt becoming SW after midnight. Rain. Seas 1 to 2 ft.

Wednesday

W wind 5 to 10 kt becoming SSE in the afternoon. A chance of rain. Seas 1 to 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.