Snow in the Rockies; Showers and Thunderstorms Along the Gulf Coast; Potential Winter Storm for Northern Mid-Atlantic and Interior New England

A winter-like pattern will continue over much of the Lower 48 over the next few days, with snow stretching from the Rockies today into the Middle Mississippi Valley on Monday. Showers and thunderstorms will develop along the Gulf Coast and Southeast on Monday. As the storm moves northward late Monday into Tuesday, winter weather is possible from the Central Appalachians to Interior New England. Read More >

Hazardous Weather Conditions

For More Weather Information:

San Juan, PR Local Forecast Office

5NM NE San Juan PR

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:E wind 8 to 10 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am.   Seas around 4 ft.

      Low: 81 °F

      E 10kt
      4ft

    • Monday

      Monday:NE wind 8 to 10 kt. Showers likely and possibly a thunderstorm before 11am, then scattered showers.   Seas around 4 ft.

      High: 84 °F

      NE 10kt
      4ft

    • Monday Night

      Monday Night:NE wind 7 to 9 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm.   Seas around 4 ft.

      Low: 81 °F

      NE 9kt
      4ft

    • Tuesday

      Tuesday:NNE wind around 7 kt. Showers likely and possibly a thunderstorm before 11am, then scattered showers.   Seas around 4 ft.

      High: 84 °F

      NNE 7kt
      4ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm.   Seas around 4 ft.

      Low: 81 °F

      Light Wind
      4ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming E 5 to 10 kt in the afternoon. Scattered showers, with thunderstorms also possible after 11am.   Seas around 4 ft.

      High: 84 °F

      ⇑E 10kt
      4ft

    • Wednesday Night

      Wednesday Night:E wind around 7 kt. Scattered showers.   Seas around 3 ft.

      Low: 81 °F

      E 7kt
      3ft

    • Thursday

      Thursday:E wind 7 to 11 kt. Scattered showers.   Seas around 3 ft.

      High: 84 °F

      E 11kt
      3ft

    • Thursday Night

      Thursday Night:E wind around 9 kt. Scattered showers.   Seas around 3 ft.

      Low: 81 °F

      E 9kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:39 pm EST Nov 30, 2025
Forecast Valid: 12am EST Dec 1, 2025-6pm EST Dec 7, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Overnight
E wind 8 to 10 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas around 4 ft.
Monday
NE wind 8 to 10 kt. Showers likely and possibly a thunderstorm before 11am, then scattered showers. Seas around 4 ft.
Monday Night
NE wind 7 to 9 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Seas around 4 ft.
Tuesday
NNE wind around 7 kt. Showers likely and possibly a thunderstorm before 11am, then scattered showers. Seas around 4 ft.
Tuesday Night
Variable winds 5 kt or less. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Seas around 4 ft.
Wednesday
Variable winds less than 5 kt becoming E 5 to 10 kt in the afternoon. Scattered showers, with thunderstorms also possible after 11am. Seas around 4 ft.
Wednesday Night
E wind around 7 kt. Scattered showers. Seas around 3 ft.
Thursday
E wind 7 to 11 kt. Scattered showers. Seas around 3 ft.
Thursday Night
E wind around 9 kt. Scattered showers. Seas around 3 ft.

Winds and seas higher in and near thunderstorms.

*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 65.99°W
Last Update: 6:39 pm EST Nov 30, 2025
Forecast Valid: 12am EST Dec 1, 2025-6pm EST Dec 7, 2025
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