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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:34 pm EDT Apr 10, 2026
Forecast Valid: 7pm EDT Apr 10, 2026-6pm EDT Apr 17, 2026

Tonight

S wind 10 to 15 kt becoming WSW after midnight. Winds could gust as high as 25 kt. Showers likely, mainly between 2am and 3am. Seas 1 ft or less.

Saturday

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

Saturday Night

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

Sunday

NW wind 5 to 10 kt becoming S in the afternoon. Increasing clouds. Seas 1 ft or less.

Sunday Night

S wind 10 to 15 kt, with gusts as high as 25 kt. Showers likely, mainly after 11pm. Seas 1 ft or less.

Monday

SW wind around 15 kt, with gusts as high as 25 kt. A chance of showers before 11am, then a chance of showers after 2pm. Seas 1 ft or less.

Monday Night

SW wind around 10 kt. A chance of showers before 9pm. Seas 1 ft or less.

Tuesday

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

Tuesday Night

Variable winds 5 kt or less. A chance of showers. 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.