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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:24 am EDT May 4, 2026
Forecast Valid: 9am EDT May 4, 2026-6pm EDT May 10, 2026

Today

WSW wind 10 to 15 kt, with gusts as high as 25 kt. Sunny. Seas 1 ft or less.

Tonight

SSW wind around 10 kt. Mostly clear. Seas 1 ft or less.

Tuesday

S wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Sunny. Seas 1 ft or less.

Tuesday Night

SSW wind around 15 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

S wind around 15 kt, with gusts as high as 20 kt. Showers likely, mainly after 5pm. Seas 1 ft or less.

Wednesday Night

S wind 10 to 15 kt becoming W after midnight. Showers, mainly before 2am. Seas 1 ft or less.

Thursday

NW wind 5 to 10 kt becoming ESE in the afternoon. A chance of showers. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

Friday

W wind 5 to 10 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.