For More Weather Information:

18NM NNE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:02 am EDT Oct 7, 2025
Forecast Valid: 8am EDT Oct 7, 2025-6pm EDT Oct 13, 2025

Today

S wind 5 to 10 kt. Sunny. Seas 1 ft or less.

Tonight

SSW wind 5 to 10 kt, with gusts as high as 20 kt. Scattered showers after 3am. Seas 1 ft or less.

Wednesday

WSW wind 5 to 10 kt becoming NNW in the afternoon. Rain before noon, then showers likely, mainly between noon and 1pm. Seas 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Mostly cloudy, then gradually becoming clear. Seas 1 ft or less.

Thursday

NNW wind around 10 kt. Sunny. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Clear. Seas 1 ft or less.

Friday

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

Friday Night

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

Saturday

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

*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.