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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:22 pm EDT Mar 20, 2026
Forecast Valid: 2pm EDT Mar 20, 2026-6pm EDT Mar 26, 2026

This Afternoon

S wind around 10 kt. A chance of rain, mainly after 5pm. Seas around 2 ft.

Tonight

SSW wind around 10 kt. Rain, mainly before 1am. Seas 3 to 4 ft.

Saturday

NW wind around 10 kt. Mostly sunny. Seas around 3 ft.

Saturday Night

Variable winds 5 kt or less. Increasing clouds. Seas 2 to 3 ft.

Sunday

SSE wind 5 to 10 kt. A chance of snow before 9am, then rain and snow likely between 9am and 11am, then rain after 11am. Seas around 2 ft.

Sunday Night

NNE wind around 10 kt. Rain likely before 3am, then a chance of snow. Seas 2 to 3 ft.

Monday

NNE wind 10 to 15 kt. A chance of snow. Seas around 3 ft.

Monday Night

N wind around 10 kt. A chance of snow. Seas 3 to 4 ft.

Tuesday

NW wind around 10 kt becoming W in the afternoon. Mostly sunny. Seas around 4 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.