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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:14 pm EST Feb 27, 2026
Forecast Valid: 6pm EST Feb 27, 2026-6pm EST Mar 6, 2026

Tonight

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

Saturday

SSW wind 10 to 15 kt. Mostly sunny. Seas 2 to 3 ft.

Saturday Night

SW wind 5 to 10 kt becoming N after midnight. Partly cloudy. Seas around 2 ft.

Sunday

N wind 5 to 10 kt becoming NE in the morning. A chance of snow between 11am and 5pm. Seas around 2 ft.

Sunday Night

NNW wind around 10 kt. Widespread freezing spray after 9pm. Mostly clear. Seas 2 to 3 ft.

Monday

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

Monday Night

Variable winds 5 kt or less. Widespread freezing spray after 10pm. Mostly clear. Seas around 2 ft.

Tuesday

S wind around 10 kt. A chance of snow after 1pm, mixing with rain after 4pm. Widespread freezing spray before 9am. Seas around 2 ft.

Tuesday Night

SSW wind around 10 kt becoming W after midnight. Rain and snow likely, becoming all rain after 4am. 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.