For More Weather Information:

18NM NNE Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:12 am EDT Apr 20, 2025
Forecast Valid: 6am EDT Apr 20, 2025-6pm EDT Apr 26, 2025

Today

WNW wind 15 to 20 kt, with gusts as high as 40 kt. Sunny. Seas 1 ft or less.

Tonight

NW wind 7 to 10 kt decreasing to 5 to 8 kt after midnight. Winds could gust as high as 20 kt. Mostly clear. Seas 1 ft or less.

Monday

NNW wind 5 to 10 kt becoming SSE in the morning. Mostly sunny. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. Showers, mainly after 2am. Seas 1 ft or less.

Tuesday

Variable winds 5 kt or less. Showers, mainly before 8am. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Wednesday

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

Wednesday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Thursday

Variable winds 5 kt or less. Mostly 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.