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Norton, MA Local Forecast Office

2NM WNW Portsmouth RI

Marine Point Forecast

[NOTICE]

Today
High: 79 °F
SSW 14kt
2-3ft
Tonight
Low: 70 °F
SSW 14kt
2-3ft
Sunday
High: 80 °F
NW 12kt
2ft
Sunday Night
Low: 59 °F
NNW 8kt
1ft
Monday
High: 76 °F
⇑SSW 8kt
1ft
Monday Night
Low: 65 °F
SSW 9kt
1ft
Tuesday
High: 78 °F
SSE 13kt
1-2ft
Tuesday Night
Low: 69 °F
SSW 16kt
2-3ft
Wednesday
High: 75 °F
SSW 17kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:36 am EDT Jul 18, 2026
Forecast Valid: 10am EDT Jul 18, 2026-6pm EDT Jul 24, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

Today

SSW wind 9 to 14 kt, with gusts as high as 24 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Widespread smoke, mainly between 4pm and 5pm. Seas 2 to 3 ft.

Tonight

SSW wind 10 to 14 kt, with gusts as high as 25 kt. Showers and thunderstorms likely before 3am, then a slight chance of showers. Some of the storms could produce heavy rainfall. Areas of smoke before 9pm. Seas 2 to 3 ft.

Sunday

NW wind 10 to 12 kt. Mostly cloudy through mid morning, then gradual clearing. Seas around 2 ft.

Sunday Night

NNW wind 5 to 8 kt. Mostly clear. Seas around 1 ft.

Monday

Variable winds less than 5 kt becoming SSW 5 to 8 kt in the afternoon. Sunny. Seas around 1 ft.

Monday Night

SSW wind 6 to 9 kt. Partly cloudy. Seas around 1 ft.

Tuesday

SSE wind 8 to 13 kt. A chance of showers and thunderstorms after 2pm. Seas 1 to 2 ft.

Tuesday Night

SSW wind 12 to 16 kt. Showers and thunderstorms likely before 10pm, then showers and possibly a thunderstorm between 10pm and 2am, then showers after 2am. Seas 2 to 3 ft.

Wednesday

SSW wind 14 to 17 kt, with gusts as high as 24 kt. Showers, with thunderstorms also possible after 2pm. Seas around 3 ft.

Winds and waves higher in and near tstms. 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.