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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:33 am EDT Mar 26, 2026
Forecast Valid: 5am EDT Mar 26, 2026-6pm EDT Apr 1, 2026

Today

SW wind 10 to 15 kt, with gusts as high as 25 kt. A chance of rain, mainly before 9am. Seas 1 ft or less.

Tonight

SW wind around 10 kt becoming NW after midnight. Winds could gust as high as 20 kt. Rain, mainly before 2am. Seas 1 ft or less.

Friday

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

Friday Night

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

Saturday

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

Saturday Night

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

Sunday

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

Sunday Night

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

Monday

SSW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly 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.