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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:09 pm EDT Sep 9, 2026
Forecast Valid: 3pm EDT Sep 9, 2026-6pm EDT Sep 16, 2026

This Afternoon

Variable winds 5 kt or less. Isolated showers before 5pm, then scattered sprinkles after 5pm. Seas around 1 ft.

Tonight

SSW wind 10 to 15 kt. Rain and thunderstorms likely, then rain and possibly a thunderstorm after 2am. Seas 2 to 3 ft.

Thursday

SW wind 10 to 15 kt becoming W in the afternoon. Winds could gust as high as 25 kt. Showers likely, mainly before 7am. Seas 2 to 3 ft.

Thursday Night

WNW wind 5 to 10 kt. Increasing clouds. Seas around 1 ft.

Friday

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

Friday Night

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

Saturday

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

Saturday Night

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

Sunday

SSW wind 5 to 10 kt. A chance of showers. 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.