For More Weather Information:

4NM E Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:52 pm EST Feb 24, 2026
Forecast Valid: 7pm EST Feb 24, 2026-6pm EST Mar 3, 2026

Tonight

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

Wednesday

S wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Snow, mainly before 1pm. Widespread freezing spray before 7am. Seas around 1 ft.

Wednesday Night

SW wind around 10 kt becoming W after midnight. A slight chance of snow showers between 8pm and 9pm. Seas around 1 ft.

Thursday

W wind around 10 kt. Sunny. Seas around 1 ft.

Thursday Night

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

Friday

Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.

Friday Night

SW wind 5 to 10 kt. Mostly clear. Seas around 1 ft.

Saturday

SSW wind 10 to 15 kt. Mostly sunny. Seas around 1 ft.

Saturday Night

SW wind around 10 kt becoming W after midnight. Partly cloudy. 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.