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4NM E Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:42 am EDT May 14, 2026
Forecast Valid: 3am EDT May 14, 2026-6pm EDT May 20, 2026

Thursday

SSE wind around 10 kt becoming E in the afternoon. Rain likely, with thunderstorms also possible after 5pm. Seas around 1 ft.

Thursday Night

E wind 10 to 15 kt. Rain and possibly a thunderstorm. Seas around 1 ft.

Friday

NE wind 5 to 10 kt. Rain, mainly before 1pm. Seas around 1 ft.

Friday Night

Variable winds 5 kt or less. Cloudy during the early evening, then gradual clearing. Seas around 1 ft.

Saturday

Variable winds 5 kt or less. Sunny. Seas around 1 ft.

Saturday Night

SSW wind 5 to 10 kt. Mostly clear. Seas around 1 ft.

Sunday

SW wind around 10 kt. A chance of showers between 11am and 2pm. Seas around 1 ft.

Sunday Night

Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

Monday

NNE wind 5 to 10 kt becoming SSE in the afternoon. 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.