Winter Weather in the Eastern U.S.; Heavy Rains Begin Across the Southern Plains into the Ohio Valley

A wintry mix may impact travel across portions of the Mid-Atlantic through the morning and the Northeast U.S. through Tuesday. Heavy rain and thunderstorms may cause a flooding threat across the Southern Plains into the Ohio Valley beginning Tuesday. Fire weather concerns will continue across portions of the central and southern High Plains through Wednesday. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]
    • Tuesday

      Tuesday:E wind 13 to 15 kt. Scattered showers, mainly after 11am.   Seas 4 to 5 ft.

      High: 81 °F

      E 15kt
      4-5ft

    • Tuesday Night

      Tuesday Night:ENE wind 9 to 11 kt. Scattered showers, mainly after 11pm.   Seas 4 to 5 ft.

      Low: 80 °F

      ENE 11kt
      4-5ft

    • Wednesday

      Wednesday:ENE wind 10 to 14 kt. Scattered showers.   Seas around 5 ft.

      High: 81 °F

      ENE 14kt
      5ft

    • Wednesday Night

      Wednesday Night:ENE wind 9 to 11 kt. Scattered showers.   Seas around 4 ft.

      Low: 80 °F

      ENE 11kt
      4ft

    • Thursday

      Thursday:ENE wind 11 to 15 kt. Isolated showers.   Seas around 4 ft.

      High: 81 °F

      ENE 15kt
      4ft

    • Thursday Night

      Thursday Night:ENE wind 9 to 11 kt. Scattered showers.   Seas around 4 ft.

      Low: 80 °F

      ENE 11kt
      4ft

    • Friday

      Friday:ENE wind 11 to 14 kt. Scattered showers after 11am.   Seas around 4 ft.

      High: 81 °F

      ENE 14kt
      4ft

    • Friday Night

      Friday Night:ENE wind 10 to 12 kt. Scattered showers.   Seas around 4 ft.

      Low: 80 °F

      ENE 12kt
      4ft

    • Saturday

      Saturday:ENE wind 13 to 15 kt. Scattered showers.   Seas around 4 ft.

      High: 81 °F

      ENE 15kt
      4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:25 am EST Mar 3, 2026
Forecast Valid: 2am EST Mar 3, 2026-6pm EDT Mar 9, 2026

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Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Tuesday
E wind 13 to 15 kt. Scattered showers, mainly after 11am. Seas 4 to 5 ft.
Tuesday Night
ENE wind 9 to 11 kt. Scattered showers, mainly after 11pm. Seas 4 to 5 ft.
Wednesday
ENE wind 10 to 14 kt. Scattered showers. Seas around 5 ft.
Wednesday Night
ENE wind 9 to 11 kt. Scattered showers. Seas around 4 ft.
Thursday
ENE wind 11 to 15 kt. Isolated showers. Seas around 4 ft.
Thursday Night
ENE wind 9 to 11 kt. Scattered showers. Seas around 4 ft.
Friday
ENE wind 11 to 14 kt. Scattered showers after 11am. Seas around 4 ft.
Friday Night
ENE wind 10 to 12 kt. Scattered showers. Seas around 4 ft.
Saturday
ENE wind 13 to 15 kt. Scattered showers. Seas around 4 ft.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 17.97°N 65.99°W
Last Update: 1:25 am EST Mar 3, 2026
Forecast Valid: 2am EST Mar 3, 2026-6pm EDT Mar 9, 2026
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