Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Overnight
Low: 82 °F
E 10kt
3ft
Wednesday
High: 83 °F
E 15kt
4ft
Wednesday Night
Low: 82 °F
E 10kt
4ft
Thursday
High: 83 °F
E 14kt
4ft
Thursday Night
Low: 82 °F
E 9kt
3ft
Friday
High: 83 °F
ENE 14kt
3ft
Friday Night
Low: 82 °F
E 9kt
2-3ft
Saturday
High: 83 °F
E 13kt
2ft
Saturday Night
Low: 82 °F
ESE 9kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:02 am EDT Jul 15, 2025
Forecast Valid: 12am EDT Jul 16, 2025-6pm EDT Jul 22, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Overnight

E wind around 10 kt. Scattered showers, mainly after 3am. Seas around 3 ft.

Wednesday

E wind 11 to 15 kt. Showers likely, with thunderstorms also possible after noon. Seas around 4 ft.

Wednesday Night

E wind 8 to 10 kt. Scattered showers before midnight. Seas around 4 ft.

Thursday

E wind 10 to 14 kt. Isolated showers. Seas around 4 ft.

Thursday Night

E wind around 9 kt. Clear. Seas around 3 ft.

Friday

ENE wind 7 to 14 kt. Isolated showers. Seas around 3 ft.

Friday Night

E wind 7 to 9 kt. Partly cloudy. Seas 2 to 3 ft.

Saturday

E wind 6 to 13 kt. Mostly sunny. Seas around 2 ft.

Saturday Night

ESE wind 5 to 9 kt. Mostly clear. Seas around 2 ft.

Winds and seas higher in and near thunderstorms.

*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.