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Norton, MA Local Forecast Office

4NM NW Portsmouth RI

Marine Point Forecast

[NOTICE]

Today
High: 49 °F
SSW 9kt
1ft
Tonight
Low: 39 °F
SSW 7kt
1ft
Wednesday
High: 54 °F
Light Wind
1-2ft
Wednesday Night
Low: 46 °F
⇑SSW 24kt
2-3ft
Thursday
High: 53 °F
SW 22kt
3ft
Thursday Night
Low: 31 °F
WNW 19kt⇓
3ft
Friday
High: 43 °F
⇑S 20kt
3ft
Friday Night
Low: 37 °F
S 23kt
3ft
Saturday
High: 46 °F
W 19kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:44 am EDT Mar 10, 2026
Forecast Valid: 5am EDT Mar 10, 2026-6pm EDT Mar 16, 2026

View Nearby Observations

Detailed Forecast

Today

SSW wind 5 to 9 kt. Mostly sunny. Seas around 1 ft.

Tonight

SSW wind 5 to 7 kt. Patchy fog after 9pm. Seas around 1 ft.

Wednesday

Variable winds 5 kt or less. A slight chance of light rain after 10am. Patchy fog before 7am, then Patchy fog between 8am and 10am. Seas 1 to 2 ft.

Wednesday Night

SSW wind 18 to 21 kt increasing to 21 to 24 kt after midnight. A chance of rain. Seas 2 to 3 ft.

Thursday

SW wind 19 to 22 kt becoming WNW in the afternoon. A chance of rain. Seas around 3 ft.

Thursday Night

WNW wind 16 to 19 kt decreasing to 13 to 16 kt after midnight. A slight chance of rain before 8pm. Seas 3 ft subsiding to 1 ft.

Friday

W wind 7 to 10 kt becoming S 15 to 20 kt in the afternoon. Mostly sunny. Seas 1 ft building to 3 ft.

Friday Night

S wind 20 to 23 kt. A chance of rain. Seas around 3 ft.

Saturday

W wind around 19 kt. Mostly sunny. Seas around 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.