National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

For More Weather Information:

San Juan, PR Local Forecast Office

18NM E Ponce PR

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:E wind 9 to 12 kt. Scattered showers, mainly before 2am. Seas around 2 ft.

      Low: 81 °F

      E 12kt
      2ft

    • Monday

      Monday:ESE wind 6 to 12 kt. Sunny. Seas around 2 ft.

      High: 84 °F

      ESE 12kt
      2ft

    • Monday Night

      Monday Night:ENE wind around 7 kt. Scattered showers, mainly after 2am. Seas around 2 ft.

      Low: 81 °F

      ENE 7kt
      2ft

    • Tuesday

      Tuesday:ESE wind 7 to 13 kt. Isolated showers before 11am. Seas around 2 ft.

      High: 84 °F

      ESE 13kt
      2ft

    • Tuesday Night

      Tuesday Night:E wind 6 to 8 kt. Mostly clear. Seas around 2 ft.

      Low: 81 °F

      E 8kt
      2ft

    • Wednesday

      Wednesday:E wind 5 to 12 kt. Isolated showers after 11am. Seas around 2 ft.

      High: 84 °F

      E 12kt
      2ft

    • Wednesday Night

      Wednesday Night:E wind 7 to 10 kt. Partly cloudy. Seas around 2 ft.

      Low: 81 °F

      E 10kt
      2ft

    • Thursday

      Thursday:E wind 9 to 12 kt. Sunny. Seas around 2 ft.

      High: 84 °F

      E 12kt
      2ft

    • Thursday Night

      Thursday Night:ENE wind around 9 kt. Partly cloudy. Seas around 2 ft.

      Low: 81 °F

      ENE 9kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:34 pm EST Dec 7, 2025
Forecast Valid: 11pm EST Dec 7, 2025-6pm EST Dec 14, 2025

View Nearby Observations

Detailed Forecast


Overnight
E wind 9 to 12 kt. Scattered showers, mainly before 2am. Seas around 2 ft.
Monday
ESE wind 6 to 12 kt. Sunny. Seas around 2 ft.
Monday Night
ENE wind around 7 kt. Scattered showers, mainly after 2am. Seas around 2 ft.
Tuesday
ESE wind 7 to 13 kt. Isolated showers before 11am. Seas around 2 ft.
Tuesday Night
E wind 6 to 8 kt. Mostly clear. Seas around 2 ft.
Wednesday
E wind 5 to 12 kt. Isolated showers after 11am. Seas around 2 ft.
Wednesday Night
E wind 7 to 10 kt. Partly cloudy. Seas around 2 ft.
Thursday
E wind 9 to 12 kt. Sunny. Seas around 2 ft.
Thursday Night
ENE wind around 9 kt. Partly cloudy. Seas around 2 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: 17.94°N 66.31°W
Last Update: 3:34 pm EST Dec 7, 2025
Forecast Valid: 11pm EST Dec 7, 2025-6pm EST Dec 14, 2025
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