Issued by: National Weather Service San Juan, PR
Updated: 9:57 pm AST Sep 20, 2020
| Tonight | Isolated showers before 3am. Mostly clear, with a low around 80. South southwest wind around 5 mph. Chance of precipitation is 10%. |
| Monday | Scattered showers after noon. Mostly sunny, with a high near 91. West southwest wind 5 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 30%. |
| Monday Night | Scattered showers, mainly before 9pm. Partly cloudy, with a low around 81. Light and variable wind becoming south around 5 mph after midnight. Chance of precipitation is 30%. |
| Tuesday | Isolated showers, then showers and possibly a thunderstorm after noon. High near 93. Heat index values as high as 103. South southeast wind 6 to 8 mph. Chance of precipitation is 80%. |
| Tuesday Night | Scattered showers. Partly cloudy, with a low around 79. South wind around 6 mph. Chance of precipitation is 40%. |
| Wednesday | Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 92. East southeast wind 6 to 8 mph. Chance of precipitation is 40%. |
| Wednesday Night | Scattered showers. Partly cloudy, with a low around 80. South southeast wind around 6 mph. Chance of precipitation is 30%. |
| Thursday | Scattered showers, mainly after noon. Mostly sunny, with a high near 92. South wind around 6 mph becoming northeast in the afternoon. Chance of precipitation is 50%. |
| Thursday Night | Scattered showers. Partly cloudy, with a low around 78. East northeast wind around 6 mph becoming south after midnight. Chance of precipitation is 30%. |
| Friday | Scattered showers, mainly after noon. Mostly sunny, with a high near 90. Chance of precipitation is 40%. |
| Friday Night | Scattered showers. Partly cloudy, with a low around 78. Chance of precipitation is 40%. |
| Saturday | Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%. |
| Saturday Night | Partly cloudy, with a low around 78. |
| Sunday | Mostly sunny, with a high near 91. |
000 AWCA82 TJSJ 202139 RWSPR PRZ001>013-210945- Weather Summary for Puerto Rico National Weather Service San Juan PR 539 PM AST Sun Sep 20 2020 Skies were partly cloudy today. Winds were variable with some sea breezes and generally less than 10 mph. Some showers formed late in the afternoon over southern Trujillo Alto and then between Lares and Morovis. Amounts were generally less than one half inch. Showers were continuing in the north central portion of the island as of 5 PM AST. Highs for the day ranged from 93 in Caguas and 92 in Anasco and Guanica to the mid 80s in the lower mountains. San Juan had a high of 90 degrees. Showers will taper off overnight and only isolated showers are expected--mainly over the local waters. Winds will be less than 10 mph in land breezes tonight. Overnight lows will range from the upper 70s in the lower elevations to the mid 60s in the highest mountain valleys. Tomorrow, scattered showers are expected, mainly north 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. Hurricane Teddy continues to send strong northeasterly swell into the area. Seas of 8 to 10 feet are expected in the Atlantic waters. These swell will continue to flow through the Atlantic and into the local passages Monday. Seas will decrease on Monday and small craft advisories will likely come down then. For tonight, surf will be high and there will be a high risk of rip currents for coasts with northeast exposure. For duration and strength of these please refer to the latest Coastal Hazard Message (CFWSJU) and Marine Weather Message (MWWSJU) issued by the WFO San Juan Puerto Rico. $$ 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.
