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 NE San Juan PR

Marine Point Forecast

[NOTICE]

Today
High: 83 °F
E 16kt
< 1ft
Tonight
Low: 74 °F
E 11kt
< 1ft
Wednesday
High: 83 °F
E 15kt
< 1ft
Wednesday Night
Low: 74 °F
E 9kt
< 1ft
Thursday
High: 83 °F
ESE 15kt
< 1ft
Thursday Night
Low: 73 °F
ESE 7kt⇓
< 1ft
Friday
High: 85 °F
⇑SE 14kt
< 1ft
Friday Night
Low: 73 °F
Light Wind
< 1ft
Saturday
High: 84 °F
⇑ESE 11kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:56 am EDT Mar 17, 2026
Forecast Valid: 9am EDT Mar 17, 2026-6pm EDT Mar 23, 2026

View Nearby Observations

Detailed Forecast

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

Today

E wind around 16 kt, with gusts as high as 23 kt. Scattered showers, mainly before noon. Seas 1 ft or less.

Tonight

E wind around 11 kt. Scattered showers, mainly after 9pm. Seas 1 ft or less.

Wednesday

E wind 12 to 15 kt. Scattered showers, mainly before 3pm. Seas 1 ft or less.

Wednesday Night

E wind 7 to 9 kt. Isolated showers. Seas 1 ft or less.

Thursday

ESE wind 8 to 15 kt. Scattered showers. Seas 1 ft or less.

Thursday Night

ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SE 9 to 14 kt in the morning. Scattered showers after noon. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Saturday

Variable winds less than 5 kt becoming ESE 6 to 11 kt in the morning. Showers likely. Seas 1 ft or less.

*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.