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3NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:20 pm EST Jan 12, 2026
Forecast Valid: 9pm EST Jan 12, 2026-6pm EST Jan 19, 2026

Tonight

SW wind around 10 kt, with gusts as high as 20 kt. Partly cloudy. Seas 1 ft or less.

Tuesday

WSW wind around 10 kt becoming S in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 ft or less.

Tuesday Night

SSW wind around 15 kt, with gusts as high as 25 kt. A slight chance of showers after 4am. Seas 1 ft or less.

Wednesday

SSW wind around 10 kt, with gusts as high as 20 kt. Cloudy. Seas 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. A chance of rain after 8pm. Seas 1 ft or less.

Thursday

WSW wind 5 to 10 kt, with gusts as high as 20 kt. A chance of rain before 1pm. Seas 1 ft or less.

Thursday Night

WNW wind around 15 kt, with gusts as high as 25 kt. A chance of snow after 9pm. Seas 1 ft or less.

Friday

WNW wind around 15 kt, with gusts as high as 25 kt. A chance of snow. Seas 1 ft or less.

Friday Night

WSW wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. 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.