For More Weather Information:

8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:51 pm EST Jan 17, 2026
Forecast Valid: 2pm EST Jan 17, 2026-6pm EST Jan 23, 2026

This Afternoon

SSW wind around 10 kt. Rain and snow likely, becoming all rain after 4pm. Seas around 3 ft.

Tonight

WSW wind 10 to 15 kt. A chance of rain before 7pm. Seas 2 to 3 ft.

Sunday

SW wind 5 to 10 kt becoming NNW in the afternoon. A slight chance of snow between 9am and noon, then a chance of rain and snow. Seas around 2 ft.

Sunday Night

N wind around 10 kt becoming NW after midnight. Snow likely, mainly between 7pm and midnight. Seas around 2 ft.

M.L.King Day

WNW wind 10 to 15 kt becoming WSW 15 to 20 kt in the afternoon. Winds could gust as high as 25 kt. Partly sunny. Seas 2 to 3 ft.

Monday Night

W wind 20 to 25 kt, with gusts as high as 30 kt. Widespread freezing spray after 4am. Partly cloudy. Seas 3 to 4 ft.

Tuesday

W wind around 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Mostly sunny. Seas around 3 ft.

Tuesday Night

W wind 15 to 20 kt, with gusts as high as 25 kt. Widespread freezing spray. Mostly clear. Seas 2 to 3 ft.

Wednesday

W wind 15 to 20 kt becoming SSW in the afternoon. Widespread freezing spray before noon. 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.