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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:20 pm EDT Apr 27, 2026
Forecast Valid: 11pm EDT Apr 27, 2026-6pm EDT May 4, 2026

Overnight

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Tuesday

ENE wind 5 to 10 kt. Mostly sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Wednesday

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

Wednesday Night

E wind around 10 kt. Showers likely, mainly after 2am. Seas 1 ft or less.

Thursday

ESE wind around 10 kt, with gusts as high as 20 kt. Rain. Seas 1 ft or less.

Thursday Night

NE wind around 10 kt becoming NW after midnight. Showers likely, mainly before midnight. Seas 1 ft or less.

Friday

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

Friday Night

W wind 5 to 10 kt. Partly cloudy. 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.