For More Weather Information:

10NM S Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:05 pm EST Dec 7, 2025
Forecast Valid: 11pm EST Dec 7, 2025-6pm EST Dec 14, 2025

Overnight

SW wind around 15 kt becoming NW after midnight. Winds could gust as high as 25 kt. Mostly clear. Seas 2 to 3 ft.

Monday

NW wind 10 to 15 kt, with gusts as high as 25 kt. Sunny. Seas around 2 ft.

Monday Night

WNW wind 5 to 10 kt. Mostly clear. Seas around 2 ft.

Tuesday

W wind 5 to 10 kt becoming SSW in the afternoon. Increasing clouds. Seas around 1 ft.

Tuesday Night

SW wind 10 to 15 kt. A chance of snow before 1am. Seas around 2 ft.

Wednesday

SSW wind 10 to 15 kt. Rain likely, mainly after 2pm. Seas 1 to 2 ft.

Wednesday Night

SW wind around 15 kt. A chance of rain before 2am. Seas around 2 ft.

Thursday

W wind 10 to 15 kt. Mostly sunny. Seas 1 to 2 ft.

Thursday Night

W wind around 10 kt. Mostly cloudy. 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.