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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:49 am EST Mar 4, 2026
Forecast Valid: 12pm EST Mar 4, 2026-6pm EDT Mar 10, 2026

This Afternoon

SW wind 5 to 10 kt. Sunny. Seas around 2 ft.

Tonight

SW wind 5 to 10 kt becoming W after midnight. Partly cloudy. Seas around 2 ft.

Thursday

N wind 10 to 15 kt becoming ENE 15 to 20 kt in the morning. Winds could gust as high as 25 kt. Mostly cloudy. Seas 1 to 2 ft.

Thursday Night

ENE wind around 20 kt, with gusts as high as 30 kt. A chance of rain before 9pm, then snow. Seas around 2 ft.

Friday

ENE wind 15 to 20 kt, with gusts as high as 25 kt. Snow, mainly before 1pm. Seas 2 to 3 ft.

Friday Night

ENE wind 7 to 10 kt becoming E 5 to 8 kt after midnight. Cloudy. Seas 2 to 3 ft.

Saturday

SSW wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Mostly cloudy. Seas 2 to 3 ft.

Saturday Night

SSW wind 15 to 20 kt becoming WSW after midnight. Winds could gust as high as 30 kt. A chance of rain. Seas 3 to 4 ft.

Sunday

W wind 10 to 15 kt. Mostly sunny. Seas 2 to 3 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.