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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:48 am EDT Jun 30, 2026
Forecast Valid: 10am EDT Jun 30, 2026-6pm EDT Jul 6, 2026

Today

SSE wind 5 to 10 kt. Mostly sunny. Seas around 1 ft.

Tonight

SSW wind around 10 kt. A chance of showers and thunderstorms. Seas around 2 ft.

Wednesday

Variable winds 5 kt or less. A slight chance of showers before 7am. Seas around 2 ft.

Wednesday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 to 2 ft.

Thursday

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

Thursday Night

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

Friday

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

Friday Night

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

Independence Day

Variable winds 5 kt or less. A chance of showers and thunderstorms after 2pm. Seas around 1 ft.

Winds and seas higher in and near tstms.

*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.