Issued by: National Weather Service San Juan, PR
Updated: 7:49 am AST Sep 21, 2020
| Today | Scattered showers, mainly after 3pm. Mostly sunny, with a high near 90. North wind 6 to 8 mph. Chance of precipitation is 30%. |
| Tonight | Isolated showers before midnight. Partly cloudy, with a low around 81. Light and variable wind becoming south around 5 mph after midnight. Chance of precipitation is 20%. |
| Tuesday | Showers likely and possibly a thunderstorm, mainly after noon. Increasing clouds, with a high near 93. Heat index values as high as 103. South wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible. |
| Tuesday Night | Scattered showers, mainly before midnight. Partly cloudy, with a low around 78. South wind around 7 mph. Chance of precipitation is 30%. |
| Wednesday | Isolated showers, then scattered showers and thunderstorms after noon. Mostly sunny, with a high near 92. South southeast wind 5 to 7 mph becoming east in the afternoon. Chance of precipitation is 50%. |
| Wednesday Night | Scattered showers, mainly after midnight. Partly cloudy, with a low around 78. South wind 5 to 7 mph. Chance of precipitation is 30%. |
| Thursday | Scattered showers, mainly after noon. Mostly sunny, with a high near 91. South southeast wind 5 to 9 mph becoming east in the afternoon. Chance of precipitation is 30%. |
| Thursday Night | Partly cloudy, with a low around 77. East southeast wind around 7 mph. |
| Friday | Mostly sunny, with a high near 89. East northeast wind 5 to 10 mph. |
| Friday Night | Partly cloudy, with a low around 78. |
| Saturday | Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%. |
| Saturday Night | Partly cloudy, with a low around 77. |
| Sunday | Mostly sunny, with a high near 91. |
000 AWCA82 TJSJ 210911 RWSPR PRZ001>013-212115- Weather Summary for Puerto Rico National Weather Service San Juan PR 511 AM AST Mon Sep 21 2020 Skies were mostly clear overnight. Barely any shower activity was detected overland. Lows overnight ranged from the mid 70s across coastal areas to the low and mid 60s across mountains and valleys. Warm to hot temperatures will prevail today with little or no rain through the morning hours. Heat indices will reach the low and mid 100s. Under a southerly wind flow, local effects will result in afternoon convection across and northeast of the Cordillera Central. Winds will be 6 to 12 mph mostly in sea breezes. Highs will range from the mid 90s in some interior locations to the lower 80s in the higher mountains. A northerly swell will slowly fade across the Atlantic Ocean today. These swell will produce breaking waves between 5 and 8 feet, therefore a high risk of rip currents will continue from the northeast to northwest beaches of Puerto Rico and Culebra. Seas will decrease and small craft advisories will expire this afternoon. $$ This product is issued around 5 AM and 5 PM each day and weather conditions may change between issuances. Please verify the status of any Watches...Warnings or Advisories mentioned in this product.
