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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 9:36 am EST Nov 17, 2025
Forecast Valid: 10am EST Nov 17, 2025-6pm EST Nov 23, 2025

Today

WNW wind around 20 kt, with gusts as high as 35 kt. Mostly sunny. Seas 1 ft or less.

Tonight

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

Tuesday

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

Tuesday Night

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

Wednesday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Wednesday Night

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

Thursday

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

Thursday Night

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

Friday

S wind 5 to 10 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.