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6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:21 am EDT Sep 30, 2026
Forecast Valid: 9am EDT Sep 30, 2026-6pm EDT Oct 6, 2026

Today

Variable winds 5 kt or less. Patchy fog before 4pm, then Patchy fog after 5pm. Seas 2 to 3 ft.

Tonight

Variable winds 5 kt or less. Patchy fog. Seas around 2 ft.

Thursday

Variable winds 5 kt or less. Patchy fog before 10am. Seas around 2 ft.

Thursday Night

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

Friday

Variable winds 5 kt or less. A chance of showers after 3pm. Seas around 2 ft.

Friday Night

Variable winds 5 kt or less. A chance of showers before midnight. Seas around 2 ft.

Saturday

Variable winds 5 kt or less. Sunny. Seas around 2 ft.

Saturday Night

Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

Sunday

Variable winds 5 kt or less. Mostly sunny. Seas around 1 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.