Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:SE wind 7 to 10 kt. Showers likely, mainly before 5pm.   Seas around 5 ft.

      High: 79 °F

      SE 10kt
      5ft

    • Tonight

      Tonight:SE wind around 6 kt becoming variable and less than 5 kt in the evening. Showers likely, mainly between 8pm and 11pm.   Seas around 4 ft.

      Low: 78 °F

      SE 6kt⇓
      4ft

    • Friday

      Friday:Variable winds less than 5 kt becoming ESE 5 to 10 kt in the morning. Showers likely, mainly before 2pm.   Seas 3 to 4 ft.

      High: 79 °F

      ⇑ESE 10kt
      3-4ft

    • Friday Night

      Friday Night:SE wind around 6 kt becoming variable and less than 5 kt in the evening. Isolated showers before 8pm.   Seas around 3 ft.

      Low: 78 °F

      SE 6kt⇓
      3ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming ENE 6 to 11 kt in the morning. Sunny. Seas around 3 ft.

      High: 79 °F

      ⇑ENE 11kt
      3ft

    • Saturday Night

      Saturday Night:ENE wind around 7 kt. Scattered showers, mainly before 11pm.   Seas around 3 ft.

      Low: 78 °F

      ENE 7kt
      3ft

    • Sunday

      Sunday:ENE wind 7 to 12 kt. Showers likely, mainly before 11am.   Seas around 4 ft.

      High: 79 °F

      ENE 12kt
      4ft

    • Sunday Night

      Sunday Night:E wind 7 to 9 kt. Partly cloudy. Seas around 5 ft.

      Low: 78 °F

      E 9kt
      5ft

    • Washington's Birthday

      Washington's Birthday:E wind 9 to 13 kt. Showers likely.   Seas around 4 ft.

      High: 79 °F

      E 13kt
      4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:13 am EST Feb 12, 2026
Forecast Valid: 11am EST Feb 12, 2026-6pm EST Feb 18, 2026

View Nearby Observations

Detailed Forecast

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

Today
SE wind 7 to 10 kt. Showers likely, mainly before 5pm. Seas around 5 ft.
Tonight
SE wind around 6 kt becoming variable and less than 5 kt in the evening. Showers likely, mainly between 8pm and 11pm. Seas around 4 ft.
Friday
Variable winds less than 5 kt becoming ESE 5 to 10 kt in the morning. Showers likely, mainly before 2pm. Seas 3 to 4 ft.
Friday Night
SE wind around 6 kt becoming variable and less than 5 kt in the evening. Isolated showers before 8pm. Seas around 3 ft.
Saturday
Variable winds less than 5 kt becoming ENE 6 to 11 kt in the morning. Sunny. Seas around 3 ft.
Saturday Night
ENE wind around 7 kt. Scattered showers, mainly before 11pm. Seas around 3 ft.
Sunday
ENE wind 7 to 12 kt. Showers likely, mainly before 11am. Seas around 4 ft.
Sunday Night
E wind 7 to 9 kt. Partly cloudy. Seas around 5 ft.
Washington's Birthday
E wind 9 to 13 kt. Showers likely. 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: 18.45°N 66.1°W
Last Update: 6:13 am EST Feb 12, 2026
Forecast Valid: 11am EST Feb 12, 2026-6pm EST Feb 18, 2026
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