Critical Fire Weather in the High Plains; Heat Continues in the West

Critical fire weather conditions will persist in the central High Plains through Friday as gusty winds and dry conditions continue. The heat wave across the West and Southwest will continue to intensify through the week, with daily and monthly record highs expected to be broken. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Overnight
Low: 79 °F
ESE 6kt
5ft
Thursday
High: 83 °F
E 13kt
4ft
Thursday Night
Low: 75 °F
ESE 7kt⇓
4ft
Friday
High: 85 °F
SE 11kt
4ft
Friday Night
Low: 76 °F
Light Wind
4ft
Saturday
High: 84 °F
⇑ESE 8kt
4ft
Saturday Night
Low: 75 °F
Light Wind
3ft
Sunday
High: 82 °F
⇑N 8kt
3ft
Sunday Night
Low: 74 °F
Light Wind
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:45 pm EDT Mar 18, 2026
Forecast Valid: 11pm EDT Mar 18, 2026-6pm EDT Mar 25, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM AST THIS EVENING...

Overnight

ESE wind around 6 kt. Scattered showers, mainly between midnight and 3am. Seas around 5 ft.

Thursday

E wind 6 to 13 kt. Scattered showers, mainly after noon. Seas around 4 ft.

Thursday Night

ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 4 ft.

Friday

SE wind 5 to 11 kt. Scattered showers, mainly after noon. Seas around 4 ft.

Friday Night

Variable winds 5 kt or less. Isolated showers. Seas around 4 ft.

Saturday

Variable winds less than 5 kt becoming ESE 5 to 8 kt in the afternoon. Isolated showers, then showers likely and possibly a thunderstorm after noon. Seas around 4 ft.

Saturday Night

Variable winds 5 kt or less. Showers likely. Seas around 3 ft.

Sunday

Variable winds less than 5 kt becoming N 5 to 8 kt in the afternoon. Showers likely. Seas around 3 ft.

Sunday Night

Variable winds 5 kt or less. Scattered showers. Seas around 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.