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10NM S Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:17 am EST Feb 8, 2026
Forecast Valid: 9am EST Feb 8, 2026-6pm EST Feb 14, 2026

Today

NW wind around 15 kt, with gusts as high as 25 kt. Widespread freezing spray. Partly sunny. Seas around 4 ft.

Tonight

NW wind 15 to 20 kt. Widespread freezing spray. Mostly clear. Seas around 4 ft.

Monday

WNW wind 10 to 15 kt. Widespread freezing spray before 1pm. Sunny. Seas 3 to 4 ft.

Monday Night

NW wind 10 to 15 kt decreasing to 5 to 10 kt after midnight. Widespread freezing spray after 10pm. Mostly clear. Seas 2 to 3 ft.

Tuesday

Variable winds 5 kt or less. Widespread freezing spray before 8am. Partly sunny. Seas around 2 ft.

Tuesday Night

Variable winds 5 kt or less. Snow likely, mainly before 11pm. Seas around 2 ft.

Wednesday

NW wind around 10 kt. Mostly cloudy. Seas around 2 ft.

Wednesday Night

NW wind around 10 kt. Mostly cloudy. Seas 1 to 2 ft.

Thursday

NNW wind around 10 kt. Mostly cloudy. Seas 1 to 2 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.