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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:03 pm EST Jan 16, 2026
Forecast Valid: 9pm EST Jan 16, 2026-6pm EST Jan 23, 2026

Tonight

W wind around 10 kt becoming SSW after midnight. A slight chance of snow after 5am. Seas around 2 ft.

Saturday

S wind 10 to 15 kt becoming WSW in the afternoon. A chance of rain and snow before noon, then rain likely. Seas around 2 ft.

Saturday Night

WSW wind 10 to 15 kt. A chance of rain before 8pm. Seas 2 to 3 ft.

Sunday

SW wind 5 to 10 kt. A chance of snow before 1pm, then a chance of rain between 1pm and 3pm, then a chance of snow after 3pm. Seas around 2 ft.

Sunday Night

WNW wind around 10 kt. A chance of snow before 1am. 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 2 to 3 ft.

Monday Night

WSW wind 20 to 25 kt, with gusts as high as 35 kt. Partly cloudy. Seas 3 to 4 ft.

Tuesday

W wind around 20 kt, with gusts as high as 30 kt. Sunny. Seas around 3 ft.

Tuesday Night

W wind around 20 kt, with gusts as high as 30 kt. Mostly clear. Seas around 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.