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

31NM ENE Charlotte Amalie VI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:E wind around 19 kt, with gusts as high as 26 kt. Scattered showers, mainly before 9pm.   Seas around 5 ft.

      Low: 79 °F

      E 19kt
      5ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:E wind around 17 kt, with gusts as high as 23 kt. Scattered showers, mainly before 9am.   Seas around 4 ft.

      High: 81 °F

      E 17kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:E wind around 15 kt, with gusts as high as 21 kt. Scattered showers, mainly between midnight and 3am.   Seas around 4 ft.

      Low: 79 °F

      E 15kt
      4ft

    • Thursday

      Thursday:E wind 14 to 16 kt, with gusts as high as 22 kt. Isolated showers.   Seas around 4 ft.

      High: 81 °F

      E 16kt
      4ft

    • Thursday Night

      Thursday Night:ESE wind 12 to 14 kt. Scattered showers, mainly after midnight.   Seas around 3 ft.

      Low: 79 °F

      ESE 14kt
      3ft

    • Friday

      Friday:ESE wind 12 to 14 kt. Scattered showers.   Seas around 3 ft.

      High: 81 °F

      ESE 14kt
      3ft

    • Friday Night

      Friday Night:SSE wind 6 to 11 kt. Partly cloudy. Seas around 3 ft.

      Low: 79 °F

      SSE 11kt
      3ft

    • Saturday

      Saturday:SSE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Scattered showers.   Seas 2 to 3 ft.

      High: 81 °F

      SSE 6kt⇓
      2-3ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Scattered showers.   Seas around 2 ft.

      Low: 79 °F

      Light Wind
      2ft


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: 6pm EDT Mar 17, 2026-6pm EDT Mar 24, 2026

View Nearby Observations

Detailed Forecast


Tonight
E wind around 19 kt, with gusts as high as 26 kt. Scattered showers, mainly before 9pm. Seas around 5 ft.
Wednesday
E wind around 17 kt, with gusts as high as 23 kt. Scattered showers, mainly before 9am. Seas around 4 ft.
Wednesday Night
E wind around 15 kt, with gusts as high as 21 kt. Scattered showers, mainly between midnight and 3am. Seas around 4 ft.
Thursday
E wind 14 to 16 kt, with gusts as high as 22 kt. Isolated showers. Seas around 4 ft.
Thursday Night
ESE wind 12 to 14 kt. Scattered showers, mainly after midnight. Seas around 3 ft.
Friday
ESE wind 12 to 14 kt. Scattered showers. Seas around 3 ft.
Friday Night
SSE wind 6 to 11 kt. Partly cloudy. Seas around 3 ft.
Saturday
SSE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Scattered showers. Seas 2 to 3 ft.
Saturday Night
Variable winds 5 kt or less. Scattered showers. 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: 18.48°N 64.4°W
Last Update: 4:43 pm EDT Mar 17, 2026
Forecast Valid: 6pm EDT Mar 17, 2026-6pm EDT Mar 24, 2026
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