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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:27 am EST Feb 15, 2026
Forecast Valid: 3am EST Feb 15, 2026-6pm EST Feb 21, 2026

Sunday

NW wind 7 to 10 kt becoming W 5 to 8 kt in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 ft or less.

Sunday Night

Variable winds 5 kt or less. Increasing clouds. Seas 1 ft or less.

Washington's Birthday

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Tuesday

Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.

Tuesday Night

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

Wednesday

Variable winds 5 kt or less. A chance of rain after 3pm, mixing with snow after 4pm. Seas 1 ft or less.

Wednesday Night

E wind 5 to 10 kt becoming NE after midnight. Rain and snow likely, becoming all snow after 4am. Seas 1 ft or less.

Thursday

NNE wind 5 to 10 kt becoming SSE in the afternoon. A chance of snow. Seas 1 ft or less.

*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.