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 >

Hazardous Weather Conditions

Small Craft Advisory until March 18, 06:00 PM EDT

For More Weather Information:

San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]

Overnight
Low: 79 °F
E 11kt
5ft

Small Craft Advisory
Wednesday
High: 81 °F
E 12kt
4ft

Small Craft Advisory
Wednesday Night
Low: 79 °F
E 9kt
3-4ft
Thursday
High: 81 °F
ESE 10kt
3ft
Thursday Night
Low: 79 °F
E 7kt
3ft
Friday
High: 81 °F
SE 9kt
3ft
Friday Night
Low: 79 °F
Light Wind
2ft
Saturday
High: 81 °F
⇑S 7kt
2ft
Saturday Night
Low: 79 °F
Light Wind
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:43 pm EDT Mar 17, 2026
Forecast Valid: 12am EDT Mar 18, 2026-6pm EDT Mar 24, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...

Overnight

E wind around 11 kt. Scattered showers. Seas around 5 ft.

Wednesday

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

Wednesday Night

E wind around 9 kt. Isolated showers before 9pm, then isolated showers after 3am. Seas 3 to 4 ft.

Thursday

ESE wind 8 to 10 kt. Showers likely, mainly before noon. Seas around 3 ft.

Thursday Night

E wind around 7 kt. Scattered showers. Seas around 3 ft.

Friday

SE wind 6 to 9 kt. Showers likely and possibly a thunderstorm before noon, then isolated showers. Seas around 3 ft.

Friday Night

Variable winds 5 kt or less. Scattered showers. Seas around 2 ft.

Saturday

Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Scattered showers. Seas around 2 ft.

Saturday Night

Variable winds 5 kt or less. Showers likely. Seas around 2 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.