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4NM E Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:20 am EST Jan 1, 2026
Forecast Valid: 12pm EST Jan 1, 2026-6pm EST Jan 7, 2026

New Year's Day

WNW wind around 20 kt, with gusts as high as 30 kt. A slight chance of snow before 1pm. Widespread freezing spray after 2pm. Seas around 1 ft.

Tonight

W wind 15 to 20 kt, with gusts as high as 30 kt. Widespread freezing spray after 8pm. Mostly clear. Seas around 1 ft.

Friday

W wind around 15 kt. Widespread freezing spray before 1pm. Sunny. Seas around 1 ft.

Friday Night

W wind around 10 kt. Widespread freezing spray after 3am. Mostly clear. Seas around 1 ft.

Saturday

W wind 10 to 15 kt. Widespread freezing spray before 10am. Mostly sunny. 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

NW wind around 10 kt. Mostly clear. Seas around 1 ft.

Monday

NW wind 5 to 10 kt. Mostly 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.