Issued by: National Weather Service San Juan, PR
Updated: 8:26 pm AST May 20, 2026
| Tonight | Isolated showers. Partly cloudy, with a low around 76. East southeast wind around 11 mph. Chance of precipitation is 10%. |
| Thursday | Scattered showers, mainly after noon. Mostly sunny, with a high near 88. East wind 10 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. |
| Thursday Night | Scattered showers, mainly after midnight. Mostly cloudy, with a low around 76. East wind 8 to 10 mph. Chance of precipitation is 50%. |
| Friday | Scattered showers, mainly after noon. Partly sunny, with a high near 88. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. |
| Friday Night | Isolated showers. Partly cloudy, with a low around 76. East wind 8 to 10 mph. Chance of precipitation is 20%. |
| Saturday | Scattered showers, mainly after noon. Mostly sunny, with a high near 88. East wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. |
| Saturday Night | Scattered showers. Partly cloudy, with a low around 76. East wind 10 to 13 mph. Chance of precipitation is 30%. |
| Sunday | Scattered showers. Partly sunny, with a high near 86. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. |
| Sunday Night | Scattered showers. Mostly cloudy, with a low around 76. East wind around 10 mph. Chance of precipitation is 40%. |
| Memorial Day | Showers likely, mainly after noon. Mostly cloudy, with a high near 87. Chance of precipitation is 60%. |
| Monday Night | Scattered showers. Mostly cloudy, with a low around 77. Chance of precipitation is 40%. |
| Tuesday | Showers likely. Mostly cloudy, with a high near 87. Chance of precipitation is 60%. |
| Tuesday Night | Scattered showers. Mostly cloudy, with a low around 76. Chance of precipitation is 50%. |
| Wednesday | Scattered showers. Mostly cloudy, with a high near 87. Chance of precipitation is 50%. |
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