Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from February 2, 05:00 AM EST until February 5, 01:00 AM EST

For More Weather Information:

San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 81 °F
SSE 12kt
4ft
Tonight
Low: 80 °F
⇑WSW 6kt
3ft
Monday
High: 81 °F
⇑N 16kt
3-5ft
Monday Night
Low: 80 °F
N 16kt
8-9ft
Tuesday
High: 81 °F
N 16kt
9ft
Tuesday Night
Low: 80 °F
NE 14kt
9ft
Wednesday
High: 81 °F
ENE 13kt
8ft
Wednesday Night
Low: 80 °F
E 8kt
6-7ft
Thursday
High: 81 °F
SE 8kt
5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:46 am EST Feb 1, 2026
Forecast Valid: 12pm EST Feb 1, 2026-6pm EST Feb 7, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH LATE

This Afternoon

SSE wind 7 to 12 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Seas around 4 ft.

Tonight

Variable winds less than 5 kt becoming WSW around 6 kt after midnight. Showers likely and possibly a thunderstorm before 2am, then scattered showers and thunderstorms after 2am. Seas around 3 ft.

Monday

WNW wind 5 to 10 kt becoming N 11 to 16 kt in the afternoon. Winds could gust as high as 23 kt. Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 11am. Seas 3 to 5 ft.

Monday Night

N wind around 16 kt, with gusts as high as 23 kt. Showers and possibly a thunderstorm. Seas 8 to 9 ft.

Tuesday

N wind 14 to 16 kt, with gusts as high as 23 kt. Showers likely and possibly a thunderstorm. Seas around 9 ft.

Tuesday Night

NE wind around 14 kt. Showers likely and possibly a thunderstorm. Seas around 9 ft.

Wednesday

ENE wind 11 to 13 kt. Showers likely. Seas around 8 ft.

Wednesday Night

E wind 5 to 8 kt. Showers likely. Seas 6 to 7 ft.

Thursday

SE wind 5 to 8 kt. Showers likely. 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.