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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:09 pm EDT Jul 8, 2026
Forecast Valid: 11pm EDT Jul 8, 2026-6pm EDT Jul 15, 2026

Overnight

SW wind around 10 kt. Mostly clear. Seas around 2 ft.

Thursday

WSW wind 5 to 10 kt becoming S in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Thursday Night

SW wind 5 to 10 kt. A slight chance of showers before 9pm. Seas around 2 ft.

Friday

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm, mainly after 5pm. Seas 1 to 2 ft.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm. Seas around 1 ft.

Saturday

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

Saturday Night

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

Sunday

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

Sunday Night

Variable winds 5 kt or less. Mostly clear. 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.