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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:27 am EST Feb 28, 2026
Forecast Valid: 2am EST Feb 28, 2026-6pm EST Mar 6, 2026

Saturday

SSW wind around 10 kt. Mostly sunny. Seas around 2 ft.

Saturday Night

Variable winds 5 kt or less. A slight chance of snow after 5am. Seas around 2 ft.

Sunday

NNE wind 5 to 10 kt becoming NNW in the afternoon. Snow likely, mainly between 7am and 5pm. Seas around 2 ft.

Sunday Night

NW wind 10 to 15 kt. A chance of snow before 9pm. Widespread freezing spray after 10pm. Seas around 2 ft.

Monday

NW wind 5 to 10 kt. Widespread freezing spray before 11am. Sunny. Seas around 2 ft.

Monday Night

WNW wind 5 to 10 kt becoming SW after midnight. Widespread freezing spray after 10pm. Mostly clear. Seas around 2 ft.

Tuesday

SSW wind 10 to 15 kt. A chance of rain and snow after 3pm. Widespread freezing spray before 9am. Seas 2 to 3 ft.

Tuesday Night

SSW wind around 10 kt becoming WSW after midnight. Rain and snow, becoming all rain after 4am. Seas around 3 ft.

Wednesday

WNW wind 5 to 10 kt. Rain likely, possibly mixing with snow after 7am, then gradually ending. Seas around 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.