Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

26NM E Ponce PR

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:ENE wind 11 to 17 kt, with gusts as high as 23 kt. Scattered showers, mainly before 11am.   Seas 3 to 4 ft.

      High: 82 °F

      ENE 17kt
      3-4ft

    • Wednesday Night

      Wednesday Night:ENE wind around 12 kt. Scattered showers, with thunderstorms also possible after 11pm.   Seas 3 to 4 ft.

      Low: 80 °F

      ENE 12kt
      3-4ft

    • Thursday

      Thursday:E wind 11 to 15 kt. Scattered showers.   Seas around 4 ft.

      High: 82 °F

      E 15kt
      4ft

    • Thursday Night

      Thursday Night:ENE wind around 9 kt. Showers likely and possibly a thunderstorm.   Seas around 3 ft.

      Low: 80 °F

      ENE 9kt
      3ft

    • Friday

      Friday:E wind 10 to 14 kt, with gusts as high as 20 kt. Scattered showers and thunderstorms.   Seas around 3 ft.

      High: 82 °F

      E 14kt
      3ft

    • Friday Night

      Friday Night:ENE wind around 9 kt. Isolated showers.   Seas around 3 ft.

      Low: 80 °F

      ENE 9kt
      3ft

    • Saturday

      Saturday:E wind 8 to 11 kt. Sunny. Seas around 2 ft.

      High: 82 °F

      E 11kt
      2ft

    • Saturday Night

      Saturday Night:ENE wind 9 to 11 kt. Mostly clear. Seas 2 to 3 ft.

      Low: 80 °F

      ENE 11kt
      2-3ft

    • Sunday

      Sunday:E wind 10 to 13 kt. Sunny. Seas around 3 ft.

      High: 82 °F

      E 13kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:47 pm EST Jan 20, 2026
Forecast Valid: 1am EST Jan 21, 2026-6pm EST Jan 27, 2026

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Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Wednesday
ENE wind 11 to 17 kt, with gusts as high as 23 kt. Scattered showers, mainly before 11am. Seas 3 to 4 ft.
Wednesday Night
ENE wind around 12 kt. Scattered showers, with thunderstorms also possible after 11pm. Seas 3 to 4 ft.
Thursday
E wind 11 to 15 kt. Scattered showers. Seas around 4 ft.
Thursday Night
ENE wind around 9 kt. Showers likely and possibly a thunderstorm. Seas around 3 ft.
Friday
E wind 10 to 14 kt, with gusts as high as 20 kt. Scattered showers and thunderstorms. Seas around 3 ft.
Friday Night
ENE wind around 9 kt. Isolated showers. Seas around 3 ft.
Saturday
E wind 8 to 11 kt. Sunny. Seas around 2 ft.
Saturday Night
ENE wind 9 to 11 kt. Mostly clear. Seas 2 to 3 ft.
Sunday
E wind 10 to 13 kt. Sunny. Seas around 3 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: 17.92°N 66.16°W
Last Update: 3:47 pm EST Jan 20, 2026
Forecast Valid: 1am EST Jan 21, 2026-6pm EST Jan 27, 2026
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