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

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

5NM NE San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 79 °F
ESE 11kt
5ft
Thursday
High: 81 °F
E 12kt
4ft
Thursday Night
Low: 79 °F
ESE 8kt⇓
4ft
Friday
High: 81 °F
⇑SE 13kt
4ft
Friday Night
Low: 79 °F
SSE 7kt⇓
4ft
Saturday
High: 81 °F
⇑SE 9kt
3-4ft
Saturday Night
Low: 79 °F
Light Wind
3ft
Sunday
High: 81 °F
⇑NNE 8kt
3ft
Sunday Night
Low: 79 °F
NNE 6kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:15 pm EDT Mar 18, 2026
Forecast Valid: 7pm 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...

Tonight

ESE wind 7 to 11 kt. Scattered showers, mainly after midnight. Seas around 5 ft.

Thursday

E wind 8 to 12 kt. Scattered showers, mainly after 3pm. Seas around 4 ft.

Thursday Night

ESE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Isolated showers. Seas around 4 ft.

Friday

Variable winds less than 5 kt becoming SE 8 to 13 kt in the morning. Scattered showers, mainly after noon. Seas around 4 ft.

Friday Night

SSE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers. Seas around 4 ft.

Saturday

Variable winds less than 5 kt becoming SE 5 to 9 kt in the afternoon. Isolated showers, then showers likely and possibly a thunderstorm after noon. Seas 3 to 4 ft.

Saturday Night

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

Sunday

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

Sunday Night

NNE wind around 6 kt. 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.