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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:24 am EDT Jun 9, 2026
Forecast Valid: 5am EDT Jun 9, 2026-6pm EDT Jun 15, 2026

Today

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

Tonight

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

Wednesday

SW wind 5 to 10 kt becoming S in the afternoon. A slight chance of showers after 5pm. Seas 1 ft or less.

Wednesday Night

S wind 5 to 10 kt. A chance of showers after 1am. Seas 1 ft or less.

Thursday

Variable winds 5 kt or less. A chance of showers after 2pm. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A chance of showers before 10pm. Seas 1 ft or less.

Friday

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

Friday Night

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

Saturday

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.