Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska

A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. Read More >

For More Weather Information:

Norton, MA Local Forecast Office

4NM W Portsmouth RI

Marine Point Forecast

[NOTICE]

Tonight
Low: 45 °F
E 6kt⇓
1ft
Monday
High: 60 °F
NE 12kt
1-2ft
Monday Night
Low: 49 °F
N 17kt
1-2ft
Tuesday
High: 60 °F
NNE 20kt
3ft
Tuesday Night
Low: 50 °F
NNE 22kt
2-3ft
Wednesday
High: 57 °F
NNE 23kt
3ft
Wednesday Night
Low: 48 °F
NNE 18kt
2-3ft
Thursday
High: 61 °F
N 16kt
2ft
Thursday Night
Low: 49 °F
⇑N 17kt
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:43 pm EDT Oct 18, 2026
Forecast Valid: 4pm EDT Oct 18, 2026-6pm EDT Oct 25, 2026

View Nearby Observations

Detailed Forecast

Tonight

E wind around 6 kt becoming variable and less than 5 kt. Clear. Seas around 1 ft.

Monday

NE wind 8 to 12 kt. Increasing clouds. Seas 1 to 2 ft.

Monday Night

N wind 12 to 17 kt. Mostly cloudy. Seas 1 to 2 ft.

Tuesday

NNE wind around 20 kt. Partly sunny. Seas around 3 ft.

Tuesday Night

NNE wind 18 to 22 kt. Partly cloudy. Seas 2 to 3 ft.

Wednesday

NNE wind 20 to 23 kt. Partly sunny. Seas around 3 ft.

Wednesday Night

NNE wind 16 to 18 kt. Mostly cloudy. Seas 2 to 3 ft.

Thursday

N wind 11 to 16 kt. Mostly sunny. Seas around 2 ft.

Thursday Night

N wind 8 to 11 kt increasing to 14 to 17 kt 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.