Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 79 °F
E 10kt
4ft
Monday
High: 81 °F
E 13kt
4ft
Monday Night
Low: 79 °F
E 12kt
4ft
Tuesday
High: 81 °F
E 16kt
4ft
Tuesday Night
Low: 79 °F
ENE 11kt
4ft
Wednesday
High: 81 °F
ENE 16kt
4-5ft
Wednesday Night
Low: 79 °F
ENE 12kt
4ft
Thursday
High: 81 °F
ENE 14kt
4ft
Thursday Night
Low: 79 °F
ENE 12kt
4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:09 pm EST Mar 1, 2026
Forecast Valid: 9pm EST Mar 1, 2026-6pm EDT Mar 8, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Tonight

E wind around 10 kt. Scattered showers, mainly after 5am. Seas around 4 ft.

Monday

E wind around 13 kt. Showers likely, mainly before 11am. Seas around 4 ft.

Monday Night

E wind 9 to 12 kt. Scattered showers before 11pm, then scattered showers after 5am. Seas around 4 ft.

Tuesday

E wind 12 to 16 kt. Scattered showers, mainly before 8am. Seas around 4 ft.

Tuesday Night

ENE wind around 11 kt. Scattered showers. Seas around 4 ft.

Wednesday

ENE wind 12 to 16 kt. Scattered showers, mainly after 11am. Seas 4 to 5 ft.

Wednesday Night

ENE wind around 12 kt. Scattered showers. Seas around 4 ft.

Thursday

ENE wind 12 to 14 kt. Mostly sunny. Seas around 4 ft.

Thursday Night

ENE wind 10 to 12 kt. Scattered showers. Seas around 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.