Late January Extreme Cold; Watching for Another East Coast Storm Threat This Weekend

Well below normal temperatures will continue for the eastern half of the Lower 48 this week. Another blast of arctic air will spread from the Plains through the East/Southeast Friday into Saturday with more record lows expected even into Florida. Forecasts are being monitored for increasing potential of another significant winter storm to impact the eastern United States this coming weekend. 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 9 to 11 kt. Scattered showers, mainly before 11am.   Seas around 4 ft.

      High: 82 °F

      E 11kt
      4ft

    • Tonight

      Tonight:ESE wind around 6 kt. Isolated showers before 2am, then isolated showers after 5am.   Seas around 4 ft.

      Low: 82 °F

      ESE 6kt
      4ft

    • Wednesday

      Wednesday:ESE wind 5 to 12 kt becoming ENE in the afternoon. Scattered showers, mainly between 11am and 2pm.   Seas around 3 ft.

      High: 82 °F

      ENE 12kt
      3ft

    • Wednesday Night

      Wednesday Night:ESE wind 5 to 7 kt. Isolated showers after 11pm.   Seas around 3 ft.

      Low: 82 °F

      ESE 7kt
      3ft

    • Thursday

      Thursday:SE wind 5 to 11 kt becoming E in the afternoon. Sunny. Seas around 3 ft.

      High: 82 °F

      E 11kt
      3ft

    • Thursday Night

      Thursday Night:E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers.   Seas around 4 ft.

      Low: 82 °F

      E 7kt⇓
      4ft

    • Friday

      Friday:Variable winds less than 5 kt becoming E 6 to 11 kt in the morning. Mostly sunny. Seas around 3 ft.

      High: 82 °F

      ⇑E 11kt
      3ft

    • Friday Night

      Friday Night:ESE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 3 ft.

      Low: 82 °F

      ESE 8kt⇓
      3ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming ESE 7 to 12 kt in the morning. Mostly sunny. Seas 3 to 5 ft.

      High: 82 °F

      ⇑ESE 12kt
      3-5ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:22 am EST Jan 27, 2026
Forecast Valid: 10am EST Jan 27, 2026-6pm EST Feb 2, 2026

View Nearby Observations

Detailed Forecast


Today
E wind 9 to 11 kt. Scattered showers, mainly before 11am. Seas around 4 ft.
Tonight
ESE wind around 6 kt. Isolated showers before 2am, then isolated showers after 5am. Seas around 4 ft.
Wednesday
ESE wind 5 to 12 kt becoming ENE in the afternoon. Scattered showers, mainly between 11am and 2pm. Seas around 3 ft.
Wednesday Night
ESE wind 5 to 7 kt. Isolated showers after 11pm. Seas around 3 ft.
Thursday
SE wind 5 to 11 kt becoming E in the afternoon. Sunny. Seas around 3 ft.
Thursday Night
E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers. Seas around 4 ft.
Friday
Variable winds less than 5 kt becoming E 6 to 11 kt in the morning. Mostly sunny. Seas around 3 ft.
Friday Night
ESE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 3 ft.
Saturday
Variable winds less than 5 kt becoming ESE 7 to 12 kt in the morning. Mostly sunny. Seas 3 to 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: 9:22 am EST Jan 27, 2026
Forecast Valid: 10am EST Jan 27, 2026-6pm EST Feb 2, 2026
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