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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:17 pm EST Jan 21, 2026
Forecast Valid: 2pm EST Jan 21, 2026-6pm EST Jan 27, 2026

This Afternoon

SSW wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Seas 1 ft or less.

Tonight

SSW wind around 15 kt, with gusts as high as 25 kt. Snow likely, possibly mixing with rain after 1am, then gradually ending. Seas 1 ft or less.

Thursday

SW wind around 15 kt becoming W in the afternoon. Winds could gust as high as 25 kt. Isolated showers between 2pm and 3pm. Seas 1 ft or less.

Thursday Night

W wind around 15 kt, with gusts as high as 25 kt. Partly cloudy. Seas 1 ft or less.

Friday

WSW wind 15 to 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas 1 ft or less.

Friday Night

WNW wind 15 to 20 kt, with gusts as high as 30 kt. Partly cloudy. Seas 1 ft or less.

Saturday

WNW wind around 15 kt, with gusts as high as 30 kt. Sunny. Seas 1 ft or less.

Saturday Night

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

Sunday

NNW wind around 10 kt becoming NNE in the afternoon. Winds could gust as high as 20 kt. Snow likely. 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.