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10NM S Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:22 pm EDT Jul 15, 2026
Forecast Valid: 3pm EDT Jul 15, 2026-6pm EDT Jul 22, 2026

This Afternoon

WNW wind around 10 kt. Partly sunny. Seas around 1 ft.

Tonight

NW wind 5 to 10 kt becoming W after midnight. Mostly clear. Seas around 1 ft.

Thursday

W wind 5 to 8 kt increasing to 7 to 10 kt in the afternoon. Patchy smoke after 10am. Seas around 1 ft.

Thursday Night

WNW wind 5 to 10 kt. Areas of smoke before 10pm. Seas around 1 ft.

Friday

WNW wind 5 to 10 kt. Sunny. Seas around 1 ft.

Friday Night

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

Saturday

Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. A chance of showers after 2pm. Seas around 1 ft.

Saturday Night

S wind around 10 kt. Showers and possibly a thunderstorm. Seas around 1 ft.

Sunday

W wind around 10 kt becoming NW in the afternoon. Showers likely. Seas around 1 ft.

Winds and seas higher in and near tstms.

*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.