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4NM E Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:27 am EDT Apr 1, 2026
Forecast Valid: 6am EDT Apr 1, 2026-6pm EDT Apr 7, 2026

Today

SW wind around 10 kt becoming NNE in the afternoon. A chance of showers, mainly before 2pm. Patchy fog before 7am. Seas 1 to 2 ft.

Tonight

NE wind around 10 kt. A chance of showers, mainly after 3am. Seas around 1 ft.

Thursday

ENE wind 10 to 15 kt. A chance of rain showers and sleet before 2pm, then a chance of rain showers. Seas 1 to 2 ft.

Thursday Night

E wind 5 to 10 kt. A chance of rain. Seas around 2 ft.

Friday

SE wind 5 to 10 kt becoming S in the afternoon. Mostly cloudy. Seas 1 to 2 ft.

Friday Night

SSW wind 10 to 15 kt becoming WSW after midnight. Partly cloudy. Seas around 2 ft.

Saturday

WNW wind 5 to 10 kt becoming E in the afternoon. Partly sunny. Seas around 1 ft.

Saturday Night

E wind 5 to 10 kt. A chance of showers. Seas 1 to 2 ft.

Sunday

SSE wind 10 to 15 kt becoming SSW in the afternoon. Showers likely. Seas around 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.