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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:27 pm EST Feb 26, 2026
Forecast Valid: 9pm EST Feb 26, 2026-6pm EST Mar 5, 2026

Tonight

NW wind around 10 kt becoming N after midnight. Mostly cloudy, then gradually becoming mostly clear. Seas around 2 ft.

Friday

Variable winds less than 5 kt becoming SSW 10 to 15 kt in the afternoon. Sunny. Seas 1 to 2 ft.

Friday Night

SSW wind around 15 kt, with gusts as high as 25 kt. Mostly clear. Seas 2 to 3 ft.

Saturday

SSW wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Mostly sunny. Seas around 3 ft.

Saturday Night

SW wind around 10 kt becoming NNW after midnight. Partly cloudy. Seas around 2 ft.

Sunday

NW wind 10 to 15 kt, with gusts as high as 25 kt. A chance of snow between 7am and 3pm. Seas around 2 ft.

Sunday Night

NW wind 15 to 20 kt, with gusts as high as 30 kt. Widespread freezing spray after 8pm. Mostly clear. Seas 2 to 3 ft.

Monday

NNW wind 10 to 15 kt becoming WNW 5 to 8 kt in the afternoon. Widespread freezing spray before 1pm. Mostly cloudy. Seas around 2 ft.

Monday Night

W wind around 10 kt. Widespread freezing spray after midnight. Partly cloudy. 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.