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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:16 am EDT Apr 24, 2026
Forecast Valid: 7am EDT Apr 24, 2026-6pm EDT Apr 30, 2026

Today

NNW wind 5 to 10 kt becoming ESE in the afternoon. Increasing clouds. Seas around 1 ft.

Tonight

Variable winds 5 kt or less. Mostly cloudy, then gradually becoming mostly clear. Seas around 1 ft.

Saturday

NNE wind 5 to 10 kt becoming SE in the afternoon. Increasing clouds. Seas around 1 ft.

Saturday Night

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

Sunday

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

Sunday Night

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

Monday

ENE wind around 10 kt. Mostly sunny. Seas around 1 ft.

Monday Night

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

Tuesday

ENE wind around 10 kt. Partly sunny. Seas around 1 ft.

*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.