Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through Monday. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from February 2, 05:00 AM EST until February 5, 01:00 AM EST

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NE San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 75 °F
Light Wind
< 1ft
Monday
High: 80 °F
⇑N 17kt
< 1ft
Monday Night
Low: 73 °F
N 17kt
< 1ft
Tuesday
High: 78 °F
NNE 17kt
< 1ft
Tuesday Night
Low: 74 °F
ENE 14kt
< 1ft
Wednesday
High: 79 °F
E 15kt
< 1ft
Wednesday Night
Low: 74 °F
ESE 10kt
< 1ft
Thursday
High: 83 °F
ESE 9kt
< 1ft
Thursday Night
Low: 73 °F
SSE 6kt⇓
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:43 pm EST Feb 1, 2026
Forecast Valid: 9pm EST Feb 1, 2026-6pm EST Feb 8, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH LATE

Tonight

Variable winds 5 kt or less. Showers and possibly a thunderstorm. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming N 12 to 17 kt in the morning. Winds could gust as high as 23 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Monday Night

N wind 15 to 17 kt, with gusts as high as 23 kt. Showers and possibly a thunderstorm before 11pm, then scattered showers and thunderstorms between 11pm and 2am, then scattered showers after 2am. Seas 1 ft or less.

Tuesday

NNE wind 14 to 17 kt, with gusts as high as 23 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Tuesday Night

ENE wind 12 to 14 kt, with gusts as high as 20 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Wednesday

E wind 12 to 15 kt, with gusts as high as 21 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Wednesday Night

ESE wind 7 to 10 kt. Showers likely. Seas 1 ft or less.

Thursday

ESE wind 6 to 9 kt. Showers likely. Seas 1 ft or less.

Thursday Night

SSE wind around 6 kt becoming variable and less than 5 kt after midnight. Scattered showers. 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.