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8NM SE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:32 pm EDT Jun 21, 2026
Forecast Valid: 8pm EDT Jun 21, 2026-6pm EDT Jun 28, 2026

Tonight

Variable winds 5 kt or less. Patchy fog after 4am. Seas around 1 ft.

Monday

Variable winds 5 kt or less. A chance of showers before 4pm, then rain, mainly after 5pm. Seas around 1 ft.

Monday Night

ESE wind 10 to 13 kt becoming SSE 12 to 15 kt after midnight. Rain and possibly a thunderstorm. Patchy fog after 4am. Seas around 1 ft.

Tuesday

S wind 5 to 10 kt becoming NNW in the afternoon. Showers, mainly before 1pm. Patchy fog before 9am. Seas 1 to 2 ft.

Tuesday Night

Variable winds 5 kt or less. Patchy fog after midnight. Seas around 1 ft.

Wednesday

Variable winds 5 kt or less. Sunny. Seas around 1 ft.

Wednesday Night

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

Thursday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. Sunny. Seas around 1 ft.

Thursday Night

SSE wind 5 to 10 kt becoming S after midnight. A chance of showers. 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.