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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:10 pm EST Jan 15, 2026
Forecast Valid: 8pm EST Jan 15, 2026-6pm EST Jan 22, 2026

Tonight

W wind around 20 kt, with gusts as high as 30 kt. Mostly cloudy, then gradually becoming mostly clear. Seas around 3 ft.

Friday

W wind 20 to 25 kt, with gusts as high as 30 kt. Widespread freezing spray before 11am. Sunny. Seas 3 to 4 ft.

Friday Night

W wind 10 to 15 kt becoming SSW after midnight. Mostly cloudy. Seas 2 to 3 ft.

Saturday

SSW wind around 10 kt. A chance of rain and snow before 1pm, then rain likely. Seas 2 to 3 ft.

Saturday Night

WSW wind 10 to 15 kt. A chance of rain before 7pm. Seas around 2 ft.

Sunday

SW wind around 10 kt becoming W in the afternoon. Mostly cloudy. Seas around 2 ft.

Sunday Night

NW wind 10 to 15 kt. A chance of snow before 11pm. Seas around 2 ft.

M.L.King Day

W wind 15 to 18 kt becoming WSW 17 to 20 kt in the afternoon. Winds could gust as high as 30 kt. Mostly sunny. Seas around 2 ft.

Monday Night

W wind 20 to 25 kt, with gusts as high as 35 kt. Partly cloudy. 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.