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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:25 pm EDT May 25, 2026
Forecast Valid: 4pm EDT May 25, 2026-6pm EDT Jun 1, 2026

Tonight

Variable winds 5 kt or less. Patchy fog after 1am. Seas 2 to 3 ft.

Tuesday

WSW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Sunny. Seas around 2 ft.

Tuesday Night

WSW wind around 10 kt. Partly cloudy. Seas 2 to 3 ft.

Wednesday

WSW wind 5 to 10 kt. A chance of showers after 5pm. Seas 1 to 2 ft.

Wednesday Night

NW wind 5 to 10 kt becoming N in the evening. Mostly cloudy. Seas around 1 ft.

Thursday

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

Thursday Night

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

Friday

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

Friday Night

SSE wind around 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.