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15NM NE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:21 am EST Nov 5, 2026
Forecast Valid: 10am EST Nov 5, 2026-6pm EST Nov 11, 2026

Today

SSW wind around 10 kt. A chance of rain, mainly before 3pm. Patchy fog after 11am. Seas 1 ft or less.

Tonight

SSW wind 5 to 10 kt. Rain likely, mainly before 4am. Patchy fog. Seas 1 ft or less.

Friday

Variable winds 5 kt or less. Rain, mainly after 11am. Patchy fog. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Rain. Patchy fog before 7pm. Seas 1 ft or less.

Saturday

N wind 5 to 10 kt. Rain likely, mainly before 9am. Seas 1 ft or less.

Saturday Night

NNE wind 5 to 10 kt becoming NNW after midnight. Rain. Seas 1 ft or less.

Sunday

WNW wind 5 to 10 kt. Rain likely before 10am. Seas 1 ft or less.

Sunday Night

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

Monday

WNW wind around 10 kt, with gusts as high as 20 kt. Sunny. 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.