High-Impact and Far-Reaching Winter Storm Continues; Cold Expands and Persists

A major winter storm will shift its impacts into the Northeast U.S. with heavy snow through tonight while over the Mid-Atlantic, sleet and freezing rain will diminish. Extremely cold air behind the storm will prolong dangerous travel and infrastructure impacts. Sub-zero low temperatures are expected nearly every morning from the Northern Plains through the Ohio Valley and into the Northeast. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NE San Juan PR

Marine Point Forecast

[NOTICE]

Monday
High: 82 °F
E 14kt
< 1ft
Monday Night
Low: 76 °F
ESE 10kt⇓
< 1ft
Tuesday
High: 84 °F
E 11kt
< 1ft
Tuesday Night
Low: 76 °F
E 8kt
< 1ft
Wednesday
High: 83 °F
E 11kt
< 1ft
Wednesday Night
Low: 76 °F
E 7kt⇓
< 1ft
Thursday
High: 84 °F
⇑ESE 8kt
< 1ft
Thursday Night
Low: 75 °F
SSE 7kt⇓
< 1ft
Friday
High: 84 °F
⇑E 7kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:51 pm EST Jan 25, 2026
Forecast Valid: 1am EST Jan 26, 2026-6pm EST Feb 1, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Monday

E wind 9 to 14 kt. Scattered showers, mainly after 2pm. Seas 1 ft or less.

Monday Night

ESE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly before 11pm. Seas 1 ft or less.

Tuesday

E wind 7 to 11 kt. Scattered showers, mainly after 11am. Seas 1 ft or less.

Tuesday Night

E wind around 8 kt. Isolated showers. Seas 1 ft or less.

Wednesday

E wind 5 to 11 kt. Scattered showers, mainly before 11am. Seas 1 ft or less.

Wednesday Night

E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers. Seas 1 ft or less.

Thursday

Variable winds less than 5 kt becoming ESE 5 to 8 kt in the morning. Sunny. Seas 1 ft or less.

Thursday Night

SSE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Clear. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming E 5 to 7 kt in the morning. Mostly sunny. Seas 1 ft or less.

*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.