For More Weather Information:

4NM E Portsmouth NH

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:08 pm EDT Mar 22, 2026
Forecast Valid: 1pm EDT Mar 22, 2026-6pm EDT Mar 28, 2026

This Afternoon

SE wind 10 to 15 kt. Rain, mainly before 5pm. Seas 1 to 2 ft.

Tonight

NNE wind 5 to 10 kt increasing to 10 to 15 kt after midnight. Rain likely, mainly between 11pm and 5am. Seas around 2 ft.

Monday

NNE wind 10 to 15 kt, with gusts as high as 20 kt. A chance of snow, mainly before 2pm. Seas around 2 ft.

Monday Night

N wind around 10 kt. A chance of snow before midnight. Seas around 2 ft.

Tuesday

Variable winds 5 kt or less. Sunny. Seas around 2 ft.

Tuesday Night

SW wind around 10 kt. Mostly cloudy. Seas around 2 ft.

Wednesday

WSW wind 10 to 15 kt. Partly sunny. Seas around 2 ft.

Wednesday Night

W wind around 10 kt. Mostly cloudy. Seas around 1 ft.

Thursday

S wind around 10 kt. A chance of rain and snow. Seas around 1 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.