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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:02 am EST Mar 1, 2026
Forecast Valid: 8am EST Mar 1, 2026-6pm EST Mar 7, 2026

Today

NW wind around 10 kt. Snow likely, mainly before 1pm. Seas around 2 ft.

Tonight

NW wind 10 to 15 kt, with gusts as high as 20 kt. Widespread freezing spray after 9pm. Mostly clear. Seas around 2 ft.

Monday

NW wind 5 to 10 kt becoming W in the afternoon. Widespread freezing spray before noon. Sunny. Seas around 2 ft.

Monday Night

SW wind 5 to 10 kt becoming W in the evening. Widespread freezing spray after 11pm. Mostly clear. Seas around 2 ft.

Tuesday

SSW wind around 10 kt. A chance of snow after 1pm, mixing with rain after 2pm. Widespread freezing spray before 9am. Seas 2 to 3 ft.

Tuesday Night

S wind 5 to 10 kt becoming NW after midnight. Rain and snow before 9pm, then rain between 9pm and 4am, then rain and snow after 4am. Seas 2 to 3 ft.

Wednesday

Variable winds 5 kt or less. Rain and snow likely before 7am. Seas 1 to 2 ft.

Wednesday Night

Variable winds 5 kt or less. Mostly cloudy. Seas around 2 ft.

Thursday

SSW wind 5 to 10 kt becoming E in the afternoon. A chance of rain. Seas 2 to 3 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.