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

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 80 °F
E 11kt
3ft
Saturday
High: 82 °F
E 18kt
4ft
Saturday Night
Low: 80 °F
E 12kt
5ft

Small Craft Advisory
Sunday
High: 82 °F
E 16kt
6ft

Small Craft Advisory
Sunday Night
Low: 80 °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 15kt
5ft
Tuesday Night
Low: 80 °F
E 11kt
5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:37 pm EST Jan 16, 2026
Forecast Valid: 10pm EST Jan 16, 2026-6pm EST Jan 23, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Tonight

E wind around 11 kt. Scattered showers, mainly after 2am. Seas around 3 ft.

Saturday

E wind 9 to 18 kt, with gusts as high as 24 kt. Showers likely before 11am, then isolated showers after 2pm. Seas around 4 ft.

Saturday Night

E wind 10 to 12 kt. Scattered showers, mainly before 2am. Seas around 5 ft.

Sunday

E wind 10 to 16 kt, with gusts as high as 22 kt. Scattered showers. Seas around 6 ft.

Sunday Night

E wind 7 to 10 kt. Scattered showers, mainly before 11pm. Seas around 5 ft.

M.L.King Day

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

Monday Night

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

Tuesday

E wind 11 to 15 kt. Mostly sunny. Seas around 5 ft.

Tuesday Night

E wind 9 to 11 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.