For More Weather Information:

6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 10:13 pm EDT Sep 27, 2026
Forecast Valid: 1am EDT Sep 28, 2026-6pm EDT Oct 4, 2026

Monday

NE wind around 20 kt, with gusts as high as 30 kt. Rain, with thunderstorms also possible after 5pm. Seas around 6 ft.

Monday Night

NNE wind 10 to 15 kt. Rain and possibly a thunderstorm before midnight, then rain likely. Seas 4 to 5 ft.

Tuesday

N wind 5 to 10 kt. A chance of rain, mainly before 7am. Seas 4 to 5 ft.

Tuesday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 3 to 4 ft.

Wednesday

Variable winds 5 kt or less. Partly sunny. Seas around 3 ft.

Wednesday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 2 to 3 ft.

Thursday

Variable winds 5 kt or less. Mostly sunny. 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. Mostly sunny. Seas around 2 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.