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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 10:00 pm EST Feb 25, 2026
Forecast Valid: 1am EST Feb 26, 2026-6pm EST Mar 4, 2026

Thursday

W wind 10 to 15 kt, with gusts as high as 25 kt. Sunny. Seas 1 ft or less.

Thursday Night

WNW wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Friday

WNW wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.

Friday Night

SSW wind around 10 kt, with gusts as high as 20 kt. Mostly clear. Seas 1 ft or less.

Saturday

SSW wind around 10 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.

Saturday Night

SW wind around 10 kt becoming WNW after midnight. Mostly cloudy. Seas around 2 ft.

Sunday

NW wind 10 to 15 kt, with gusts as high as 25 kt. A chance of snow after 8am. Seas 1 to 2 ft.

Sunday Night

NW wind 10 to 15 kt, with gusts as high as 25 kt. Partly cloudy. Seas around 1 ft.

Monday

NNW wind around 10 kt becoming NNE in the afternoon. Mostly sunny. 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.