Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from January 21, 11:00 PM EST until January 22, 05:00 PM EST

For More Weather Information:

San Juan, PR Local Forecast Office

26NM E Ponce PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 80 °F
ENE 11kt
3ft
Wednesday
High: 82 °F
ENE 17kt
3-4ft
Wednesday Night
Low: 80 °F
ENE 12kt
3-4ft
Thursday
High: 82 °F
E 15kt
4ft
Thursday Night
Low: 80 °F
ENE 9kt
3ft
Friday
High: 82 °F
E 14kt
3ft
Friday Night
Low: 80 °F
ENE 9kt
3ft
Saturday
High: 82 °F
E 11kt
2ft
Saturday Night
Low: 80 °F
ENE 11kt
2-3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:47 pm EST Jan 20, 2026
Forecast Valid: 7pm EST Jan 20, 2026-6pm EST Jan 27, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Tonight

ENE wind around 11 kt. Scattered showers, mainly before 11pm. Seas around 3 ft.

Wednesday

ENE wind 12 to 17 kt, with gusts as high as 23 kt. Scattered showers, mainly before 11am. Seas 3 to 4 ft.

Wednesday Night

ENE wind around 12 kt. Scattered showers, with thunderstorms also possible after 11pm. Seas 3 to 4 ft.

Thursday

E wind 11 to 15 kt. Scattered showers. Seas around 4 ft.

Thursday Night

ENE wind around 9 kt. Showers likely and possibly a thunderstorm. Seas around 3 ft.

Friday

E wind 10 to 14 kt, with gusts as high as 20 kt. Scattered showers and thunderstorms. Seas around 3 ft.

Friday Night

ENE wind around 9 kt. Partly cloudy. Seas around 3 ft.

Saturday

E wind 8 to 11 kt. Sunny. Seas around 2 ft.

Saturday Night

ENE wind 9 to 11 kt. Mostly clear. Seas 2 to 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.