Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from January 17, 05:00 PM EST until January 18, 05:00 PM EST

For More Weather Information:

San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Saturday
High: 83 °F
E 17kt
4ft
Saturday Night
Low: 73 °F
E 14kt
5ft
Sunday
High: 83 °F
E 15kt
5ft
Sunday Night
Low: 74 °F
E 10kt
5ft
M.L.King Day
High: 82 °F
E 15kt
5ft
Monday Night
Low: 80 °F
E 10kt
5ft
Tuesday
High: 82 °F
E 14kt
5ft
Tuesday Night
Low: 80 °F
E 10kt
5ft
Wednesday
High: 82 °F
E 14kt
5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:19 am EST Jan 17, 2026
Forecast Valid: 3am EST Jan 17, 2026-6pm EST Jan 23, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY

Saturday

E wind 10 to 17 kt, with gusts as high as 23 kt. Showers likely, mainly before 11am. Seas around 4 ft.

Saturday Night

E wind 8 to 14 kt. Scattered showers before 11pm, then scattered showers after 2am. Seas around 5 ft.

Sunday

E wind 12 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly after 2pm. Seas around 5 ft.

Sunday Night

E wind around 10 kt. Scattered showers. Seas around 5 ft.

M.L.King Day

E wind 9 to 15 kt. Scattered showers, mainly before 11am. Seas around 5 ft.

Monday Night

E wind 8 to 10 kt. Scattered showers. Seas around 5 ft.

Tuesday

E wind 9 to 14 kt. Mostly sunny. Seas around 5 ft.

Tuesday Night

E wind around 10 kt. Scattered showers. Seas around 5 ft.

Wednesday

E wind 10 to 14 kt. Scattered showers. 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.