Early Heat Wave in the West; Fire Concerns in the 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. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. 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

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 79 °F
ESE 12kt
5ft

Small Craft Advisory
Wednesday
High: 81 °F
E 15kt
5ft

Small Craft Advisory
Wednesday Night
Low: 79 °F
ESE 9kt
5ft
Thursday
High: 81 °F
ESE 14kt
4ft
Thursday Night
Low: 79 °F
ESE 7kt⇓
4ft
Friday
High: 81 °F
SE 10kt
4ft
Friday Night
Low: 79 °F
Light Wind
4ft
Saturday
High: 81 °F
⇑ENE 8kt
3-4ft
Saturday Night
Low: 79 °F
Light Wind
3ft

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: 8pm EDT Mar 17, 2026-6pm EDT Mar 24, 2026

View Nearby Observations

Detailed Forecast

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

Tonight

ESE wind 8 to 12 kt. Scattered showers, mainly after 9pm. Seas around 5 ft.

Wednesday

E wind 9 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly between noon and 3pm. Seas around 5 ft.

Wednesday Night

ESE wind 5 to 9 kt. Isolated showers before 9pm, then isolated showers after 3am. Seas around 5 ft.

Thursday

ESE wind 5 to 14 kt. Scattered showers. Seas around 4 ft.

Thursday Night

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

Friday

SE wind 5 to 10 kt. Scattered showers, mainly after noon. Seas around 4 ft.

Friday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 4 ft.

Saturday

Variable winds less than 5 kt becoming ENE 5 to 8 kt in the morning. Showers likely. Seas 3 to 4 ft.

Saturday 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.