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Norton, MA Local Forecast Office

Portsmouth RI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 66 °F
Light Wind
< 1ft
Tonight
Low: 51 °F
ESE 6kt⇓
< 1ft
Sunday
High: 65 °F
⇑SSE 7kt
< 1ft
Sunday Night
Low: 57 °F
SE 7kt⇓
< 1ft
Monday
High: 65 °F
NNE 12kt
< 1ft
Monday Night
Low: 54 °F
NNE 6kt
< 1ft
Tuesday
High: 62 °F
NE 11kt
< 1ft
Tuesday Night
Low: 53 °F
NE 10kt
< 1ft
Wednesday
High: 64 °F
⇑ENE 18kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:33 pm EDT Sep 19, 2026
Forecast Valid: 3pm EDT Sep 19, 2026-6pm EDT Sep 26, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

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

Tonight

ESE wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming SSE 5 to 7 kt in the morning. Showers, mainly after 1pm. Seas 1 ft or less.

Sunday Night

SE wind 5 to 7 kt becoming variable and less than 5 kt. Showers, mainly before 3am. Patchy fog. Seas 1 ft or less.

Monday

NNE wind around 12 kt. A chance of showers, mainly before 7am. Patchy fog between 8am and 9am. Seas 1 ft or less.

Monday Night

NNE wind around 6 kt. Mostly cloudy. Seas 1 ft or less.

Tuesday

NE wind 9 to 11 kt. Partly sunny. Seas 1 ft or less.

Tuesday Night

NE wind around 10 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

ENE wind 12 to 15 kt increasing to 15 to 18 kt in the afternoon. Partly sunny. Seas 1 ft or less.

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.