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Norton, MA Local Forecast Office

4NM NW Portsmouth RI

Marine Point Forecast

[NOTICE]

Tonight
Low: 61 °F
Light Wind
1ft
Tuesday
High: 68 °F
⇑ESE 6kt
1ft
Tuesday Night
Low: 63 °F
Light Wind
1ft
Wednesday
High: 74 °F
SSW 11kt
1-2ft
Wednesday Night
Low: 67 °F
SSW 10kt
1ft
Juneteenth
High: 82 °F
⇑SSW 16kt
3ft
Thursday Night
Low: 67 °F
SW 17kt
2-3ft
Friday
High: 79 °F
W 15kt
2-3ft
Friday Night
Low: 63 °F
WSW 12kt
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:26 pm EDT Jun 16, 2025
Forecast Valid: 10pm EDT Jun 16, 2025-6pm EDT Jun 23, 2025

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Detailed Forecast

Tonight

Variable winds 5 kt or less. A chance of showers, mainly after 4am. Patchy fog after midnight. Seas around 1 ft.

Tuesday

Variable winds less than 5 kt becoming ESE around 6 kt in the afternoon. A chance of showers before 1pm, then a slight chance of showers after 3pm. Patchy fog before noon. Seas around 1 ft.

Tuesday Night

Variable winds 5 kt or less. A chance of showers, mainly between 2am and 3am. Seas around 1 ft.

Wednesday

SSW wind 6 to 11 kt. A chance of showers, mainly before 9am. Patchy fog before 9am. Seas 1 to 2 ft.

Wednesday Night

SSW wind 8 to 10 kt. A chance of showers and thunderstorms, mainly between 9pm and 5am. Seas around 1 ft.

Juneteenth

SSW wind 10 to 13 kt increasing to 13 to 16 kt in the afternoon. A slight chance of showers before 9am. Seas 1 ft building to 3 ft.

Thursday Night

SW wind around 17 kt becoming W after midnight. Partly cloudy. Seas 2 to 3 ft.

Friday

W wind around 15 kt. Sunny. Seas 2 to 3 ft.

Friday Night

WSW wind 10 to 12 kt becoming W after midnight. Mostly clear. Seas 1 to 2 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.