Pacific Storm System Moves Inland; Strong Storm in Alaska

A Pacific storm system will bring low elevation/valley rain and mountain snow as it moves inland to the central Great Basin through the central Rockies through Thursday. Scattered thunderstorms are likely from California into the Great Basin. A large low pressure system continues to bring snow, blizzard conditions, damaging winds, and mixed precipitation along the Bering Sea and Southwest Alaska. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:E wind 12 to 14 kt. Isolated showers before 11am, then isolated showers after 2pm.   Seas around 8 ft.

      High: 79 °F

      E 14kt
      8ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:E wind 6 to 8 kt. Scattered showers, mainly after 11pm.   Seas around 6 ft.

      Low: 78 °F

      E 8kt
      6ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:ESE wind 7 to 10 kt. Showers likely, mainly after 11am.   Seas 5 to 6 ft.

      High: 79 °F

      ESE 10kt
      5-6ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday Night

      Thursday Night:SE wind around 6 kt becoming variable and less than 5 kt in the evening. Scattered showers.   Seas around 5 ft.

      Low: 78 °F

      SE 6kt⇓
      5ft

    • Friday

      Friday:Variable winds less than 5 kt becoming E 5 to 9 kt in the morning. Scattered showers.   Seas around 4 ft.

      High: 80 °F

      ⇑E 9kt
      4ft

    • Friday Night

      Friday Night:ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers before 11pm.   Seas around 3 ft.

      Low: 78 °F

      ESE 7kt⇓
      3ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming ENE 5 to 10 kt in the morning. Mostly sunny. Seas around 3 ft.

      High: 80 °F

      ⇑ENE 10kt
      3ft

    • Saturday Night

      Saturday Night:E wind around 8 kt. Mostly clear. Seas around 3 ft.

      Low: 78 °F

      E 8kt
      3ft

    • Sunday

      Sunday:E wind 8 to 14 kt. Scattered showers.   Seas 3 to 4 ft.

      High: 80 °F

      E 14kt
      3-4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:17 am EST Feb 11, 2026
Forecast Valid: 10am EST Feb 11, 2026-6pm EST Feb 17, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

Today
E wind 12 to 14 kt. Isolated showers before 11am, then isolated showers after 2pm. Seas around 8 ft.
Tonight
E wind 6 to 8 kt. Scattered showers, mainly after 11pm. Seas around 6 ft.
Thursday
ESE wind 7 to 10 kt. Showers likely, mainly after 11am. Seas 5 to 6 ft.
Thursday Night
SE wind around 6 kt becoming variable and less than 5 kt in the evening. Scattered showers. Seas around 5 ft.
Friday
Variable winds less than 5 kt becoming E 5 to 9 kt in the morning. Scattered showers. Seas around 4 ft.
Friday Night
ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers before 11pm. Seas around 3 ft.
Saturday
Variable winds less than 5 kt becoming ENE 5 to 10 kt in the morning. Mostly sunny. Seas around 3 ft.
Saturday Night
E wind around 8 kt. Mostly clear. Seas around 3 ft.
Sunday
E wind 8 to 14 kt. Scattered showers. Seas 3 to 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 18.46°N 66.13°W
Last Update: 10:17 am EST Feb 11, 2026
Forecast Valid: 10am EST Feb 11, 2026-6pm EST Feb 17, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data