For More Weather Information:

25NM ENE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 8:11 pm EDT Jul 3, 2025
Forecast Valid: 10pm EDT Jul 3, 2025-6pm EDT Jul 10, 2025

Tonight

NW wind around 15 km/h becoming W after midnight. Isolated showers before 11pm. Seas around 1 m.

Independence Day

W wind 10 to 15 km/h. Sunny. Seas around 1 m.

Friday Night

NW wind around 15 km/h. Mostly clear. Seas around 1 m.

Saturday

W wind 10 to 13 km/h becoming S 12 to 15 km/h in the afternoon. Partly sunny. Seas around 1 m.

Saturday Night

SW wind 20 to 25 km/h, with gusts as high as 35 km/h. Mostly cloudy. Seas around 1 m.

Sunday

SSW wind around 25 km/h, with gusts as high as 40 km/h. Mostly sunny. Seas around 1 m.

Sunday Night

SW wind 25 to 30 km/h, with gusts as high as 40 km/h. Mostly clear. Seas around 1 m.

Monday

SW wind 20 to 25 km/h becoming S in the afternoon. Winds could gust as high as 35 km/h. Sunny. Seas around 1 m.

Monday Night

SSW wind 22 to 25 km/h decreasing to 20 to 23 km/h after midnight. Winds could gust as high as 35 km/h. A chance of showers. Seas around 1 m.

*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.