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 >

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Saturday
High: 82 °F
SE 14kt
4ft
Saturday Night
Low: 82 °F
SE 8kt
4-5ft
Sunday
High: 82 °F
SSE 9kt⇓
4ft
Sunday Night
Low: 82 °F
⇑WNW 6kt
3ft
Monday
High: 82 °F
⇑N 15kt
6ft
Monday Night
Low: 82 °F
N 15kt
8-9ft
Tuesday
High: 82 °F
NNE 15kt
9ft
Tuesday Night
Low: 82 °F
NE 14kt
7-9ft
Wednesday
High: 82 °F
ENE 14kt
7ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:29 pm EST Jan 30, 2026
Forecast Valid: 1am EST Jan 31, 2026-6pm EST Feb 6, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Saturday

SE wind 5 to 14 kt. Isolated showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas around 4 ft.

Saturday Night

SE wind 5 to 8 kt. Showers likely and possibly a thunderstorm before 11pm, then scattered showers and thunderstorms after 11pm. Seas 4 to 5 ft.

Sunday

SSE wind 5 to 9 kt becoming variable and less than 5 kt in the afternoon. Isolated showers, then showers likely and possibly a thunderstorm after 11am. Seas around 4 ft.

Sunday Night

Variable winds less than 5 kt becoming WNW around 6 kt. Isolated showers, then showers likely and possibly a thunderstorm after 11pm. Seas around 3 ft.

Monday

Variable winds less than 5 kt becoming N 10 to 15 kt in the morning. Winds could gust as high as 21 kt. Scattered showers, then showers likely and possibly a thunderstorm after 11am. Seas 3 ft building to 6 ft.

Monday Night

N wind around 15 kt, with gusts as high as 21 kt. Showers likely and possibly a thunderstorm. Seas 8 to 9 ft.

Tuesday

NNE wind around 15 kt, with gusts as high as 21 kt. Showers likely. Seas around 9 ft.

Tuesday Night

NE wind around 14 kt. Showers likely. Seas 7 to 9 ft.

Wednesday

ENE wind 12 to 14 kt. Showers likely. Seas around 7 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.