Heavy Rain and Flooding Threat in the Ohio Valley

Gulf moisture will combine with a cold front and will bring heavy rain and scattered flash flooding over parts of the Mid-South into the Ohio Valley through the morning and the Ohio Valley and Central Appalachians on Tuesday. Showers and thunderstorms, some severe, are expected over the Southern Rockies/Southern High Plains on Tuesday. Read More >

Hazardous Weather Conditions

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Tuesday
High: 85 °F
⇑ENE 9kt
5ft

Small Craft Advisory
Tuesday Night
Low: 83 °F
Light Wind
4ft
Wednesday
High: 85 °F
⇑ESE 13kt
3ft
Wednesday Night
Low: 83 °F
Light Wind
3ft
Thursday
High: 85 °F
⇑E 11kt
3ft
Thursday Night
Low: 83 °F
Light Wind
3ft
Friday
High: 85 °F
⇑ENE 6kt
3ft
Friday Night
Low: 83 °F
Light Wind
3ft
Saturday
High: 85 °F
⇑E 7kt
4-5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:27 pm EDT Oct 6, 2025
Forecast Valid: 1am EDT Oct 7, 2025-6pm EDT Oct 13, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

Tuesday

Variable winds less than 5 kt becoming ENE 5 to 9 kt in the morning. Showers likely and possibly a thunderstorm before 9am, then scattered showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Seas around 5 ft.

Tuesday Night

Variable winds 5 kt or less. Scattered showers, mainly between 9pm and midnight. Seas around 4 ft.

Wednesday

Variable winds less than 5 kt becoming ESE 8 to 13 kt in the morning. Isolated showers after noon. Seas around 3 ft.

Wednesday Night

Variable winds 5 kt or less. Isolated showers. Seas around 3 ft.

Thursday

Variable winds less than 5 kt becoming E 6 to 11 kt in the afternoon. Scattered showers, with thunderstorms also possible after noon. Seas around 3 ft.

Thursday Night

Variable winds 5 kt or less. Scattered showers. Seas around 3 ft.

Friday

Variable winds less than 5 kt becoming ENE around 6 kt in the afternoon. Scattered showers. Seas around 3 ft.

Friday Night

Variable winds 5 kt or less. Scattered showers. Seas around 3 ft.

Saturday

Variable winds less than 5 kt becoming E 5 to 7 kt in the morning. Scattered showers. Seas 4 to 5 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.