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4NM E Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 9:56 am EDT Apr 3, 2026
Forecast Valid: 12pm EDT Apr 3, 2026-6pm EDT Apr 9, 2026

This Afternoon

S wind around 10 kt. Patchy fog before 1pm. Seas around 1 ft.

Tonight

SSW wind 10 to 15 kt becoming WSW after midnight. Partly cloudy. Seas around 1 ft.

Saturday

NNW wind around 10 kt becoming E in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Saturday Night

ESE wind around 10 kt. Showers likely, mainly after midnight. Seas around 2 ft.

Sunday

SSE wind 5 to 10 kt becoming SSW in the afternoon. Showers. Seas around 2 ft.

Sunday Night

W wind around 10 kt. Showers likely, mainly before 7pm. Seas around 2 ft.

Monday

W wind around 10 kt. Mostly sunny. Seas around 1 ft.

Monday Night

W wind 5 to 10 kt. Partly cloudy. Seas around 1 ft.

Tuesday

Variable winds 5 kt or less. Mostly sunny. Seas around 1 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.