Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Hazardous Weather Conditions

Small Craft Advisory until January 19, 05:00 AM EST

For More Weather Information:

San Juan, PR Local Forecast Office

31NM ENE Charlotte Amalie VI

Marine Point Forecast

[NOTICE]

Tonight
Low: 78 °F
E 21kt
5ft

Small Craft Advisory
M.L.King Day
High: 82 °F
E 20kt
4ft
Monday Night
Low: 80 °F
E 20kt
4-5ft
Tuesday
High: 82 °F
E 20kt
4-5ft
Tuesday Night
Low: 80 °F
ENE 21kt
5ft
Wednesday
High: 82 °F
E 22kt
5ft
Wednesday Night
Low: 80 °F
E 22kt
5ft
Thursday
High: 82 °F
E 22kt
5ft
Thursday Night
Low: 80 °F
E 19kt
5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:49 pm EST Jan 18, 2026
Forecast Valid: 10pm EST Jan 18, 2026-6pm EST Jan 25, 2026

View Nearby Observations

Detailed Forecast

Tonight

E wind 19 to 21 kt, with gusts as high as 28 kt. Scattered showers, mainly after 5am. Seas around 5 ft.

M.L.King Day

E wind 16 to 20 kt, with gusts as high as 27 kt. Scattered showers, mainly after 11am. Seas around 4 ft.

Monday Night

E wind around 20 kt, with gusts as high as 27 kt. Scattered showers. Seas 4 to 5 ft.

Tuesday

E wind around 20 kt, with gusts as high as 27 kt. Scattered showers, mainly before 8am. Seas 4 to 5 ft.

Tuesday Night

ENE wind around 21 kt, with gusts as high as 28 kt. Scattered showers. Seas around 5 ft.

Wednesday

E wind 20 to 22 kt, with gusts as high as 30 kt. Scattered showers, mainly after 11am. Seas around 5 ft.

Wednesday Night

E wind around 22 kt, with gusts as high as 30 kt. Scattered showers. Seas around 5 ft.

Thursday

E wind 20 to 22 kt, with gusts as high as 30 kt. Mostly sunny. Seas around 5 ft.

Thursday Night

E wind around 19 kt, with gusts as high as 26 kt. Partly cloudy. Seas around 5 ft.

*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.