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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:57 am EST Feb 20, 2026
Forecast Valid: 12pm EST Feb 20, 2026-6pm EST Feb 26, 2026

This Afternoon

ESE wind 5 to 10 kt. Snow likely before 4pm, then rain, possibly mixed with snow. Seas 1 to 2 ft.

Tonight

E wind around 10 kt becoming NNE after midnight. Snow, mainly before 4am. Seas 2 to 3 ft.

Saturday

NNE wind 7 to 10 kt decreasing to 5 to 8 kt in the afternoon. A chance of snow, mainly before 7am. Seas around 3 ft.

Saturday Night

Variable winds 5 kt or less. Mostly cloudy. Seas around 3 ft.

Sunday

NNE wind around 10 kt becoming ENE in the afternoon. Partly sunny. Seas around 3 ft.

Sunday Night

ENE wind 10 to 15 kt increasing to 15 to 20 kt after midnight. Winds could gust as high as 25 kt. A chance of snow after 10pm. Seas 3 to 4 ft.

Monday

NNE wind 15 to 20 kt, with gusts as high as 30 kt. A chance of snow before 3pm. Seas 5 to 6 ft.

Monday Night

N wind 10 to 15 kt becoming NW after midnight. Mostly cloudy. Seas 7 to 8 ft.

Tuesday

NW wind 5 to 10 kt. Mostly sunny. Seas 8 to 9 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.