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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:24 pm EDT Aug 31, 2026
Forecast Valid: 3pm EDT Aug 31, 2026-6pm EDT Sep 7, 2026

This Afternoon

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

Tonight

Variable winds 5 kt or less. Increasing clouds. Seas around 1 ft.

Tuesday

Variable winds 5 kt or less. Rain likely. Seas around 1 ft.

Tuesday Night

Variable winds 5 kt or less. A chance of rain before 1am. Seas 1 to 2 ft.

Wednesday

Variable winds 5 kt or less. Mostly cloudy. Seas around 2 ft.

Wednesday Night

Variable winds 5 kt or less. Showers, mainly after 2am. Seas around 2 ft.

Thursday

S wind 5 to 10 kt. Showers, with thunderstorms also possible after 11am. Seas around 2 ft.

Thursday Night

Variable winds 5 kt or less. Showers likely, mainly before 8pm. Seas around 2 ft.

Friday

Variable winds 5 kt or less. Mostly sunny. Seas around 2 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.