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

15NM SSE Mayaguez PR

Marine Point Forecast

[NOTICE]

Wednesday
High: 88 °F
⇑ESE 17kt
2ft
Wednesday Night
Low: 79 °F
E 14kt
2ft
Thursday
High: 88 °F
⇑SE 18kt
2ft
Thursday Night
Low: 78 °F
E 13kt
2ft
Friday
High: 88 °F
ESE 13kt
2ft
Friday Night
Low: 77 °F
ENE 8kt
2ft
Saturday
High: 88 °F
SE 15kt
2ft
Saturday Night
Low: 78 °F
E 11kt
2ft
Sunday
High: 88 °F
ESE 16kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:59 am EDT Jul 16, 2025
Forecast Valid: 3am EDT Jul 16, 2025-6pm EDT Jul 22, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Wednesday

ESE wind 5 to 10 kt increasing to 12 to 17 kt in the afternoon. Isolated showers between noon and 3pm, then scattered showers and thunderstorms after 3pm. Seas around 2 ft.

Wednesday Night

E wind 8 to 14 kt. Scattered showers before 9pm, then isolated showers after midnight. Seas around 2 ft.

Thursday

SE wind 7 to 12 kt increasing to 13 to 18 kt in the afternoon. Isolated showers, then scattered showers and thunderstorms after noon. Widespread haze before 9am. Seas around 2 ft.

Thursday Night

E wind 7 to 13 kt. Isolated showers. Widespread haze. Seas around 2 ft.

Friday

ESE wind 7 to 13 kt. Showers likely and possibly a thunderstorm after noon. Seas around 2 ft.

Friday Night

ENE wind 6 to 8 kt. Mostly clear. Seas around 2 ft.

Saturday

E wind 8 to 15 kt becoming SE in the afternoon. Sunny. Seas around 2 ft.

Saturday Night

E wind 9 to 11 kt. Mostly clear. Seas around 2 ft.

Sunday

ESE wind 9 to 16 kt. Sunny. 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.