Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Hazardous Weather Conditions

Small Craft Advisory until January 23, 05:00 PM EST

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Overnight
Low: 80 °F
E 9kt
5ft

Small Craft Advisory
Friday
High: 82 °F
E 13kt
5ft

Small Craft Advisory
Friday Night
Low: 80 °F
E 10kt
4-5ft
Saturday
High: 82 °F
E 13kt
4ft
Saturday Night
Low: 80 °F
E 10kt
4ft
Sunday
High: 82 °F
E 15kt
4ft
Sunday Night
Low: 80 °F
E 10kt
4ft
Monday
High: 82 °F
E 13kt
4ft
Monday Night
Low: 80 °F
E 9kt⇓
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:03 pm EST Jan 22, 2026
Forecast Valid: 11pm EST Jan 22, 2026-6pm EST Jan 29, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...

Overnight

E wind 7 to 9 kt. Scattered showers. Seas around 5 ft.

Friday

E wind 7 to 13 kt. Scattered showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then scattered showers after 2pm. Seas around 5 ft.

Friday Night

E wind 6 to 10 kt. Scattered showers, then showers likely and possibly a thunderstorm after 2am. Seas 4 to 5 ft.

Saturday

E wind 7 to 13 kt. Scattered showers, mainly before 11am. Seas around 4 ft.

Saturday Night

E wind 8 to 10 kt. Isolated showers. Seas around 4 ft.

Sunday

E wind 10 to 15 kt, with gusts as high as 21 kt. Isolated showers after 11am. Seas around 4 ft.

Sunday Night

E wind 7 to 10 kt. Clear. Seas around 4 ft.

Monday

E wind 6 to 13 kt. Mostly sunny. Seas around 4 ft.

Monday Night

E wind 5 to 9 kt becoming variable and less than 5 kt. Partly cloudy. Seas around 3 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.