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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:24 pm EDT Apr 9, 2026
Forecast Valid: 7pm EDT Apr 9, 2026-6pm EDT Apr 16, 2026

Tonight

SSW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly clear. Seas 1 ft or less.

Friday

SSW wind around 10 kt becoming S in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 ft or less.

Friday Night

SSW wind 10 to 15 kt becoming WSW after midnight. Winds could gust as high as 25 kt. A chance of showers, mainly after 9pm. Seas 1 ft or less.

Saturday

NW wind around 10 kt, with gusts as high as 25 kt. Partly sunny, then gradually becoming sunny. Seas 1 ft or less.

Saturday Night

WNW wind 5 to 10 kt. Clear. Seas 1 ft or less.

Sunday

WNW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Sunday Night

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

Monday

SW wind 10 to 15 kt, with gusts as high as 25 kt. A chance of showers. Seas 1 ft or less.

Monday Night

WSW wind around 10 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.