For More Weather Information:

Norton, MA Local Forecast Office

8NM NNE Portsmouth RI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 45 °F
SSW 9kt
1-2ft
Tonight
Low: 38 °F
SSW 14kt
2-3ft
Wednesday
High: 49 °F
SSW 10kt
2ft
Wednesday Night
Low: 37 °F
S 7kt
1ft
Thursday
High: 42 °F
⇑W 13kt
3ft
Thursday Night
Low: 20 °F
W 12kt
3ft
Friday
High: 33 °F
WSW 12kt
2-3ft
Friday Night
Low: 29 °F
SW 10kt
1-2ft
Saturday
High: 44 °F
SW 11kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:20 am EST Jan 13, 2026
Forecast Valid: 12pm EST Jan 13, 2026-6pm EST Jan 19, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SSW wind around 9 kt. Sunny. Seas 1 to 2 ft.

Tonight

SSW wind 10 to 14 kt, with gusts as high as 20 kt. Increasing clouds. Seas 2 to 3 ft.

Wednesday

SSW wind 8 to 10 kt. Mostly cloudy. Seas around 2 ft.

Wednesday Night

S wind around 7 kt. A chance of showers, mainly after 8pm. Seas around 1 ft.

Thursday

SW wind 7 to 10 kt becoming W 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. A chance of showers, mainly before 9am. Seas 1 ft building to 3 ft.

Thursday Night

W wind around 12 kt, with gusts as high as 24 kt. Partly cloudy. Seas around 3 ft.

Friday

W wind 9 to 12 kt becoming SW in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 2 to 3 ft.

Friday Night

SW wind 7 to 10 kt. Mostly cloudy. Seas 1 to 2 ft.

Saturday

SW wind 7 to 11 kt, with gusts as high as 20 kt. A chance of showers. Seas 1 ft building to 3 ft.

Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.

*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.