Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through Monday. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Late Afternoon

      Late Afternoon:S wind around 7 kt. Scattered showers and thunderstorms.   Seas around 3 ft.

      High: 81 °F

      S 7kt
      3ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Scattered showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then scattered showers and thunderstorms after 2am.   Seas around 3 ft.

      Low: 80 °F

      Light Wind
      3ft

    • Monday

      Monday:Variable winds less than 5 kt becoming N 11 to 16 kt in the morning. Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 11am.   Seas 3 ft building to 6 ft.

      High: 81 °F

      ⇑N 16kt
      Waves Building6ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:N wind 14 to 16 kt, with gusts as high as 22 kt. Showers and possibly a thunderstorm.   Seas 8 to 9 ft.

      Low: 80 °F

      N 16kt
      8-9ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday

      Tuesday:NNE wind 13 to 16 kt, with gusts as high as 22 kt. Showers likely and possibly a thunderstorm before 8am, then scattered showers between 8am and 11am, then showers likely and possibly a thunderstorm after 11am.   Seas around 9 ft.

      High: 81 °F

      NNE 16kt
      9ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday Night

      Tuesday Night:ENE wind 12 to 14 kt. Showers likely and possibly a thunderstorm.   Seas around 8 ft.

      Low: 80 °F

      ENE 14kt
      8ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:E wind 12 to 15 kt. Showers likely.   Seas 7 to 8 ft.

      High: 81 °F

      E 15kt
      7-8ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:ESE wind 6 to 9 kt. Showers likely.   Seas 6 to 7 ft.

      Low: 80 °F

      ESE 9kt
      6-7ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:ESE wind 5 to 9 kt. Showers likely.   Seas around 5 ft.

      High: 81 °F

      ESE 9kt
      5ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:40 pm EST Feb 1, 2026
Forecast Valid: 5pm EST Feb 1, 2026-6pm EST Feb 8, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH LATE

Late Afternoon
S wind around 7 kt. Scattered showers and thunderstorms. Seas around 3 ft.
Tonight
Variable winds 5 kt or less. Scattered showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then scattered showers and thunderstorms after 2am. Seas around 3 ft.
Monday
Variable winds less than 5 kt becoming N 11 to 16 kt in the morning. Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 11am. Seas 3 ft building to 6 ft.
Monday Night
N wind 14 to 16 kt, with gusts as high as 22 kt. Showers and possibly a thunderstorm. Seas 8 to 9 ft.
Tuesday
NNE wind 13 to 16 kt, with gusts as high as 22 kt. Showers likely and possibly a thunderstorm before 8am, then scattered showers between 8am and 11am, then showers likely and possibly a thunderstorm after 11am. Seas around 9 ft.
Tuesday Night
ENE wind 12 to 14 kt. Showers likely and possibly a thunderstorm. Seas around 8 ft.
Wednesday
E wind 12 to 15 kt. Showers likely. Seas 7 to 8 ft.
Wednesday Night
ESE wind 6 to 9 kt. Showers likely. Seas 6 to 7 ft.
Thursday
ESE wind 5 to 9 kt. Showers likely. Seas around 5 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: 18.46°N 66.13°W
Last Update: 3:40 pm EST Feb 1, 2026
Forecast Valid: 5pm EST Feb 1, 2026-6pm EST Feb 8, 2026
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