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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:24 am EST Jan 17, 2026
Forecast Valid: 4am EST Jan 17, 2026-6pm EST Jan 23, 2026

Saturday

SSW wind around 10 kt. Rain likely, possibly mixed with snow, mainly after 1pm. Seas 1 ft or less.

Saturday Night

WSW wind around 10 kt, with gusts as high as 20 kt. A chance of rain, mainly before 7pm. Seas 1 ft or less.

Sunday

WSW wind 5 to 10 kt. A chance of snow, mainly after 11am. Seas 1 ft or less.

Sunday Night

NW wind 5 to 10 kt. A chance of snow before 1am. Seas 1 ft or less.

M.L.King Day

W wind 10 to 13 kt becoming WSW 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Seas 1 ft or less.

Monday Night

W wind around 15 kt, with gusts as high as 30 kt. Partly cloudy. Seas 1 ft or less.

Tuesday

W wind around 15 kt, with gusts as high as 30 kt. Mostly sunny. Seas 1 ft or less.

Tuesday Night

WSW wind around 15 kt, with gusts as high as 25 kt. Mostly clear. Seas 1 ft or less.

Wednesday

SW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 1 ft or less.

*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.