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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:26 am EDT Mar 28, 2026
Forecast Valid: 4am EDT Mar 28, 2026-6pm EDT Apr 3, 2026

Saturday

NNE wind 5 to 10 kt becoming ESE in the afternoon. Mostly sunny. Seas 1 ft or less.

Saturday Night

S wind around 10 kt becoming NW after midnight. Winds could gust as high as 20 kt. Mostly cloudy, then gradually becoming clear. Seas 1 ft or less.

Sunday

WSW wind around 10 kt becoming SSW in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas 1 ft or less.

Sunday Night

SSW wind 10 to 15 kt, with gusts as high as 25 kt. Increasing clouds. Seas 1 ft or less.

Monday

SW wind around 10 kt, with gusts as high as 20 kt. Partly sunny. Seas 1 ft or less.

Monday Night

WSW wind 5 to 10 kt. Mostly cloudy. Seas 1 ft or less.

Tuesday

SE wind around 10 kt, with gusts as high as 20 kt. A chance of rain. Seas 1 ft or less.

Tuesday Night

ESE wind 10 to 13 kt becoming SSW 12 to 15 kt after midnight. Winds could gust as high as 25 kt. A chance of rain. Seas 1 ft or less.

Wednesday

SW wind 10 to 15 kt, with gusts as high as 25 kt. Rain 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.