Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Plains to the Upper Midwest

A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S and linger through much of the work week. Numerous daily record highs and warm lows are likely. Severe thunderstorms are possible from the southern Plains through the Upper Mississippi Valley. Fire weather concerns are expected to persist across the Four Corners region. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

San Juan, PR Local Forecast Office

19NM ENE Charlotte Amalie VI

Marine Point Forecast

[NOTICE]

Tonight
Low: 82 °F
E 18kt
2-3ft
Monday
High: 83 °F
E 19kt
3ft
Monday Night
Low: 82 °F
E 19kt
2-3ft
Tuesday
High: 83 °F
ESE 19kt
3ft
Tuesday Night
Low: 82 °F
E 21kt
3ft
Wednesday
High: 83 °F
E 18kt
3ft
Wednesday Night
Low: 82 °F
E 17kt
2ft
Thursday
High: 83 °F
E 17kt
3ft
Thursday Night
Low: 82 °F
ENE 17kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:16 pm EDT Jun 22, 2025
Forecast Valid: 6pm EDT Jun 22, 2025-6pm EDT Jun 29, 2025

View Nearby Observations

Detailed Forecast

Tonight

E wind 15 to 18 kt, with gusts as high as 25 kt. Scattered showers, mainly after 3am. Seas 2 to 3 ft.

Monday

E wind 16 to 19 kt, with gusts as high as 26 kt. Scattered showers before 9am, then scattered showers and thunderstorms between 9am and noon, then isolated showers after noon. Seas around 3 ft.

Monday Night

E wind 16 to 19 kt, with gusts as high as 25 kt. Isolated showers. Seas 2 to 3 ft.

Tuesday

ESE wind 17 to 19 kt, with gusts as high as 26 kt. Isolated showers before noon. Seas around 3 ft.

Tuesday Night

E wind 19 to 21 kt, with gusts as high as 28 kt. Clear. Seas around 3 ft.

Wednesday

E wind 16 to 18 kt, with gusts as high as 24 kt. Isolated showers before noon. Seas around 3 ft.

Wednesday Night

E wind around 17 kt, with gusts as high as 23 kt. Partly cloudy. Seas around 2 ft.

Thursday

E wind around 17 kt, with gusts as high as 23 kt. Sunny. Seas around 3 ft.

Thursday Night

ENE wind around 17 kt, with gusts as high as 23 kt. Partly cloudy. 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.