Issued by: National Weather Service San Juan, PR
Updated: 5:35 am AST May 28, 2023
| This Afternoon  | Scattered showers. Mostly sunny, with a high near 89. East wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. |
| Tonight  | Scattered showers. Mostly cloudy, with a low around 77. East southeast wind 6 to 9 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible. |
| Memorial Day  | Scattered showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 88. East wind 7 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible. |
| Monday Night  | Scattered showers. Mostly cloudy, with a low around 78. East southeast wind 6 to 9 mph. Chance of precipitation is 40%. |
| Tuesday  | Showers likely, mainly before noon. Mostly cloudy, with a high near 90. East southeast wind 9 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. |
| Tuesday Night  | Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. East southeast wind 7 to 10 mph. Chance of precipitation is 50%. |
| Wednesday  | Mostly sunny, with a high near 90. East southeast wind 8 to 17 mph, with gusts as high as 22 mph. |
| Wednesday Night  | Clear, with a low around 79. East southeast wind 7 to 9 mph. |
| Thursday  | Scattered showers, mainly after noon. Mostly sunny, with a high near 89. East southeast wind 10 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. |
| Thursday Night  | Partly cloudy, with a low around 79. |
| Friday  | Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 40%. |
| Friday Night  | Partly cloudy, with a low around 79. |
| Saturday  | Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 40%. |
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000 AWCA82 TJSJ 280800 RWSPR PRZ001>013-282200- Weather Summary for Puerto Rico National Weather Service San Juan PR 400 AM AST Sun May 28 2023 A moist plume streaming across the region caused increased cloud cover and brought showers with isolated thunderstorms to eastern and southern sections of Puerto Rico. Through 4 AM AST, radar- estimated rainfall accumulations have peaked between two to three inches in Guayama and neighboring municipalities. Elsewhere, fair weather conditions under partly cloudy skies prevailed. Overnight minimum temperatures range from around 66 degrees across the higher elevations to about 79 degrees across the lower elevations of northeastern Puerto Rico. Winds were generally calm to light from the east-southeast but variable further inland. As the moist plume continues to stream across the region, showers with isolated thunderstorms will continue to affect the eastern and southern sections of the island this morning. As the day progresses, the shower and thunderstorm activity will shift to land areas, aided by local effects and diurnal heating, clustering along the northwestern quadrant of the island. Moderate to locally heavy rains could result in flooding impacts, including localized flash flooding. Elsewhere, showers are still possible but with lower rainfall totals and potential risks, mainly downwind from El Yunque and the local islands. Daytime maximum temperatures will peak into the lower 90s across lower elevations and other urban areas, with heat indices likely exceeding 102 degrees. Winds will become more east-southeasterly at 10-15 mph with higher gusts and sea breeze variations. Across the local waters, mariners can expect seas up to 5 feet and east-to-southeast winds up to 15 knots. For beachgoers, life- threatening rip currents are possible across northern and eastern Puerto Rico and Culebra beaches. $$ The last Weather Summary for the Puerto Rico will be issued on Wednesday, May 31, 2023. To stay updated on the weather in Puerto Rico, please check the Areal Forecast Discussion (AFDSJU) and the Hazardous Weather Outlook (HWOSJU).
