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

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Overnight
Low: 82 °F
E 9kt
4ft
Monday
High: 83 °F
E 14kt
4ft
Monday Night
Low: 82 °F
E 8kt⇓
3ft
Tuesday
High: 83 °F
E 11kt
3-4ft
Tuesday Night
Low: 82 °F
ESE 7kt
3-4ft
Wednesday
High: 83 °F
⇑E 11kt
3ft
Wednesday Night
Low: 82 °F
E 7kt⇓
3ft
Thursday
High: 83 °F
⇑E 7kt
2-3ft
Thursday Night
Low: 82 °F
S 6kt⇓
3-4ft

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: 11pm EST Jan 25, 2026-6pm EST Feb 1, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Overnight

E wind around 9 kt. Isolated showers. Seas around 4 ft.

Monday

E wind 7 to 14 kt. Scattered showers, mainly after 2pm. Seas around 4 ft.

Monday Night

E wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly before 11pm. Seas around 3 ft.

Tuesday

E wind 5 to 11 kt. Isolated showers. Seas 3 to 4 ft.

Tuesday Night

ESE wind around 7 kt. Isolated showers. Seas 3 to 4 ft.

Wednesday

Variable winds less than 5 kt becoming E 6 to 11 kt in the morning. Scattered showers, mainly before 11am. Seas around 3 ft.

Wednesday Night

E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 3 ft.

Thursday

Variable winds less than 5 kt becoming E 5 to 7 kt in the morning. Sunny. Seas 2 to 3 ft.

Thursday Night

S wind around 6 kt becoming variable and less than 5 kt in the evening. Clear. Seas 3 to 4 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.