Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

For More Weather Information:

San Juan, PR Local Forecast Office

9NM E Ponce PR

Marine Point Forecast

[NOTICE]
    • Late Afternoon

      Late Afternoon:ESE wind around 13 kt, with gusts as high as 22 kt. Isolated showers.   Seas around 3 ft.

      High: 84 °F

      ESE 13kt
      3ft

    • Tonight

      Tonight:ENE wind 7 to 11 kt. Scattered showers, mainly after 3am.   Seas around 3 ft.

      Low: 72 °F

      ENE 11kt
      3ft

    • Wednesday

      Wednesday:ESE wind 8 to 17 kt, with gusts as high as 27 kt. Isolated showers before 9am.   Seas around 3 ft.

      High: 84 °F

      ESE 17kt
      3ft

    • Wednesday Night

      Wednesday Night:ENE wind 5 to 8 kt. Mostly clear. Seas around 2 ft.

      Low: 71 °F

      ENE 8kt
      2ft

    • Thursday

      Thursday:ENE wind 6 to 13 kt becoming SE in the afternoon. Winds could gust as high as 22 kt. Scattered showers, mainly before noon.   Seas around 2 ft.

      High: 83 °F

      ESE 13kt
      2ft

    • Thursday Night

      Thursday Night:E wind 5 to 9 kt. Isolated showers.   Seas around 2 ft.

      Low: 71 °F

      E 9kt
      2ft

    • Friday

      Friday:E wind around 9 kt becoming SSE in the afternoon. Scattered showers before noon.   Seas around 2 ft.

      High: 83 °F

      ESE 9kt
      2ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Scattered showers.   Seas around 1 ft.

      Low: 71 °F

      Light Wind
      1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming S 5 to 9 kt in the morning. Mostly sunny. Seas around 1 ft.

      High: 82 °F

      ⇑S 9kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:43 pm EDT Mar 17, 2026
Forecast Valid: 5pm EDT Mar 17, 2026-6pm EDT Mar 24, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...

Late Afternoon
ESE wind around 13 kt, with gusts as high as 22 kt. Isolated showers. Seas around 3 ft.
Tonight
ENE wind 7 to 11 kt. Scattered showers, mainly after 3am. Seas around 3 ft.
Wednesday
ESE wind 8 to 17 kt, with gusts as high as 27 kt. Isolated showers before 9am. Seas around 3 ft.
Wednesday Night
ENE wind 5 to 8 kt. Mostly clear. Seas around 2 ft.
Thursday
ENE wind 6 to 13 kt becoming SE in the afternoon. Winds could gust as high as 22 kt. Scattered showers, mainly before noon. Seas around 2 ft.
Thursday Night
E wind 5 to 9 kt. Isolated showers. Seas around 2 ft.
Friday
E wind around 9 kt becoming SSE in the afternoon. Scattered showers before noon. Seas around 2 ft.
Friday Night
Variable winds 5 kt or less. Scattered showers. Seas around 1 ft.
Saturday
Variable winds less than 5 kt becoming S 5 to 9 kt in the morning. Mostly sunny. Seas around 1 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: 17.98°N 66.45°W
Last Update: 4:43 pm EDT Mar 17, 2026
Forecast Valid: 5pm EDT Mar 17, 2026-6pm EDT Mar 24, 2026
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