For More Weather Information:

8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 8:08 pm EDT Apr 13, 2026
Forecast Valid: 11pm EDT Apr 13, 2026-6pm EDT Apr 20, 2026

Overnight

W wind around 10 kt. Partly cloudy. Seas around 3 ft.

Tuesday

S wind 5 to 8 kt becoming SE 7 to 10 kt in the afternoon. A slight chance of showers after 5pm. Patchy fog between 10am and noon. Seas 1 to 2 ft.

Tuesday Night

SSE wind 10 to 15 kt becoming WSW after midnight. A chance of showers and thunderstorms. Patchy dense fog after 9pm. Seas 2 to 3 ft.

Wednesday

WSW wind 5 to 10 kt becoming ESE in the afternoon. A chance of showers after 2pm. Seas 1 to 2 ft.

Wednesday Night

N wind 5 to 10 kt. A chance of showers. Seas around 1 ft.

Thursday

ENE wind 5 to 10 kt. A chance of showers. Seas around 1 ft.

Thursday Night

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

Friday

WSW wind 5 to 10 kt becoming ENE in the afternoon. A chance of showers. Seas around 1 ft.

Friday Night

NE 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.