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4NM E Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:04 am EST Feb 22, 2026
Forecast Valid: 2am EST Feb 22, 2026-6pm EST Feb 28, 2026

Sunday

NNE wind around 10 kt becoming ENE in the afternoon. Increasing clouds. Seas around 1 ft.

Sunday Night

ENE wind 15 to 20 kt increasing to 20 to 25 kt. Winds could gust as high as 35 kt. Snow likely, mainly after 4am. Seas around 1 ft.

Monday

NE wind 30 to 35 kt becoming N in the afternoon. Winds could gust as high as 45 kt. Snow. Seas around 1 ft.

Monday Night

N wind 20 to 25 kt becoming NW 15 to 20 kt after midnight. Winds could gust as high as 35 kt. Snow likely before midnight. Seas around 1 ft.

Tuesday

WNW wind around 15 kt, with gusts as high as 20 kt. Widespread freezing spray before 7am. Mostly sunny. Seas around 1 ft.

Tuesday Night

WNW wind 5 to 10 kt becoming WSW after midnight. Partly cloudy. Seas around 1 ft.

Wednesday

SW wind 5 to 10 kt becoming S in the morning. Snow likely, mainly after 9am. Seas around 1 ft.

Wednesday Night

WSW wind around 10 kt. A chance of snow. Seas around 1 ft.

Thursday

W wind around 10 kt. A chance of rain and snow between 3pm and 4pm, then a chance of snow after 4pm. 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.