For More Weather Information:

6NM SSE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 8:14 pm EDT Oct 19, 2026
Forecast Valid: 2am EDT Oct 20, 2026-6pm EDT Oct 26, 2026

Tuesday

N wind around 10 kt becoming NE in the afternoon. Mostly sunny. Seas 3 ft building to 5 ft.

Tuesday Night

NNE wind 10 to 15 kt. Mostly clear. Seas around 5 ft.

Wednesday

NNE wind around 10 kt. Mostly sunny. Seas around 5 ft.

Wednesday Night

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

Thursday

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

Thursday Night

NNW wind around 10 kt. Mostly clear. Seas 4 to 5 ft.

Friday

N wind around 10 kt. Sunny. Seas around 4 ft.

Friday Night

Variable winds 5 kt or less. Mostly clear. Seas around 3 ft.

Saturday

Variable winds 5 kt or less. Sunny. Seas around 3 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.