For More Weather Information:

3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:17 pm EDT Apr 29, 2026
Forecast Valid: 6pm EDT Apr 29, 2026-6pm EDT May 6, 2026

Tonight

ENE wind 5 to 10 kt becoming ESE after midnight. Showers likely, mainly after 4am. Patchy dense fog. Seas 1 ft or less.

Thursday

SE wind 5 to 10 kt. Showers. Patchy dense fog before 8am. Seas 1 ft or less.

Thursday Night

WNW wind 5 to 10 kt. Scattered showers, mainly before midnight. Seas 1 ft or less.

Friday

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

Friday Night

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

Saturday

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

Saturday Night

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

Sunday

Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

Sunday Night

Variable winds 5 kt or less. 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.