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10NM S Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:05 pm EDT Oct 7, 2025
Forecast Valid: 4pm EDT Oct 7, 2025-6pm EDT Oct 14, 2025

Tonight

SSW wind around 15 kt, with gusts as high as 20 kt. A chance of rain, mainly after 5am. Seas around 2 ft.

Wednesday

SSW wind around 10 kt becoming NNW in the afternoon. Rain, mainly before 2pm. Seas around 2 ft.

Wednesday Night

NNW wind 10 to 15 kt. Mostly clear. Seas around 1 ft.

Thursday

NNW wind 10 to 15 kt. Sunny. Seas around 2 ft.

Thursday Night

NNW wind 5 to 10 kt. Clear. Seas 1 to 2 ft.

Friday

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

Friday Night

WSW wind 5 to 10 kt. Mostly clear. Seas around 1 ft.

Saturday

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

Saturday Night

Variable winds 5 kt or less. Partly cloudy. 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.