Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Today
High: 82 °F
⇑E 9kt
5ft
Tonight
Low: 82 °F
ESE 8kt⇓
4ft
Friday
High: 82 °F
E 13kt
4ft
Friday Night
Low: 82 °F
SE 8kt
4ft
Saturday
High: 82 °F
ESE 13kt
4ft
Saturday Night
Low: 82 °F
SSE 7kt
4ft
Sunday
High: 82 °F
SSE 11kt
3-4ft
Sunday Night
Low: 82 °F
Light Wind
3ft
Monday
High: 82 °F
N 15kt
3-5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:41 am EST Jan 29, 2026
Forecast Valid: 5am EST Jan 29, 2026-6pm EST Feb 4, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today

Variable winds less than 5 kt becoming E 5 to 9 kt in the morning. Scattered showers, mainly after 2pm. Seas around 5 ft.

Tonight

ESE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly after 2am. Seas around 4 ft.

Friday

E wind 5 to 13 kt. Scattered showers, mainly after 11am. Seas around 4 ft.

Friday Night

SE wind 5 to 8 kt. Scattered showers before 11pm. Seas around 4 ft.

Saturday

ESE wind 5 to 13 kt. Scattered showers after 11am. Seas around 4 ft.

Saturday Night

SSE wind 5 to 7 kt. Scattered showers and thunderstorms. Seas around 4 ft.

Sunday

SSE wind 7 to 11 kt becoming SW in the afternoon. Showers likely after 11am. Seas 3 to 4 ft.

Sunday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 3 ft.

Monday

N wind 8 to 15 kt. Showers likely. Seas 3 to 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.