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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:58 am EDT Jun 20, 2026
Forecast Valid: 10am EDT Jun 20, 2026-6pm EDT Jun 26, 2026

Today

WNW wind 10 to 15 kt. A slight chance of showers after 3pm. Seas around 2 ft.

Tonight

W wind 5 to 10 kt. Partly cloudy. Seas 1 to 2 ft.

Sunday

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

Sunday Night

Variable winds 5 kt or less. A chance of showers before 7pm. Seas around 1 ft.

Monday

Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Showers likely, mainly after 4pm. Seas around 1 ft.

Monday Night

ESE wind 10 to 15 kt. Showers. Seas 2 to 3 ft.

Tuesday

NNW wind 5 to 10 kt. Showers likely before 8am. Seas 2 to 3 ft.

Tuesday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 to 2 ft.

Wednesday

Variable winds 5 kt or less. Sunny. Seas 1 to 2 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.