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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:22 am EST Feb 21, 2026
Forecast Valid: 1am EST Feb 21, 2026-6pm EST Feb 27, 2026

Saturday

NNE wind 15 to 20 kt decreasing to 10 to 15 kt. Winds could gust as high as 30 kt. Snow likely, mainly before 9am. Seas around 2 ft.

Saturday Night

NNE wind around 10 kt. Mostly cloudy. Seas around 2 ft.

Sunday

NE wind 10 to 15 kt, with gusts as high as 25 kt. A slight chance of snow after 2pm. Seas around 2 ft.

Sunday Night

ENE wind 20 to 25 kt increasing to 30 to 35 kt. Winds could gust as high as 45 kt. Snow likely, mainly after 3am. Seas 2 to 3 ft.

Monday

NNE wind 35 to 40 kt, with gusts as high as 55 kt. Snow likely. Seas 4 to 5 ft.

Monday Night

N wind 30 to 35 kt becoming NW 20 to 25 kt. Winds could gust as high as 45 kt. A chance of snow before 11pm. Seas 4 to 5 ft.

Tuesday

WNW wind 15 to 20 kt. Mostly sunny. Seas 3 to 4 ft.

Tuesday Night

WNW wind around 15 kt, with gusts as high as 25 kt. Partly cloudy. Seas 2 to 3 ft.

Wednesday

W wind around 10 kt becoming S in the afternoon. Mostly cloudy. Seas 2 to 3 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.