National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall and Severe Thunderstorms Threaten the Southern U.S. Again Friday

Heavy to excessive rainfall is forecast for eastern Louisiana into central Alabama which could bring flash, urban, and riverine flooding Friday. Scattered severe thunderstorms with a few tornadoes, very large hail, and damaging winds are possible across parts of the Gulf Coast States Friday and Friday night. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

82°F

28°C

Humidity 79%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 17 May 6:56 am AST
Extended Forecast for

Ceiba PR

Heat Advisory May 17, 11:00am until May 17, 05:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Isolated showers after 9am. Sunny, with a high near 90. Heat index values as high as 108. East wind 6 to 13 mph. Chance of precipitation is 20%.

    High: 90 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers before 9pm. Mostly clear, with a low around 74. Southeast wind 3 to 6 mph. Chance of precipitation is 10%.

    Low: 74 °F

    Isolated
    Showers then
    Clear

  • Saturday

    Saturday: Scattered showers after noon. Mostly sunny, with a high near 91. Heat index values as high as 108. East northeast wind 7 to 14 mph. Chance of precipitation is 30%.

    High: 91 °F

    Sunny then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: Isolated showers after midnight. Mostly clear, with a low around 74. East wind around 7 mph. Chance of precipitation is 10%.

    Low: 74 °F

    Clear then
    Isolated
    Showers

  • Sunday

    Sunday: Scattered showers, mainly after noon. Mostly sunny, with a high near 90. East wind 7 to 14 mph. Chance of precipitation is 50%.

    High: 90 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Sunday Night

    Sunday Night: Clear, with a low around 74. East southeast wind around 7 mph.

    Low: 74 °F

    Clear

  • Monday

    Monday: Scattered showers, mainly after noon. Mostly sunny, with a high near 90. East wind 6 to 15 mph. Chance of precipitation is 40%.

    High: 90 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. East southeast wind 6 to 9 mph.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. East wind 7 to 13 mph.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Today
Isolated showers after 9am. Sunny, with a high near 90. Heat index values as high as 108. East wind 6 to 13 mph. Chance of precipitation is 20%.
Tonight
Isolated showers before 9pm. Mostly clear, with a low around 74. Southeast wind 3 to 6 mph. Chance of precipitation is 10%.
Saturday
Scattered showers after noon. Mostly sunny, with a high near 91. Heat index values as high as 108. East northeast wind 7 to 14 mph. Chance of precipitation is 30%.
Saturday Night
Isolated showers after midnight. Mostly clear, with a low around 74. East wind around 7 mph. Chance of precipitation is 10%.
Sunday
Scattered showers, mainly after noon. Mostly sunny, with a high near 90. East wind 7 to 14 mph. Chance of precipitation is 50%.
Sunday Night
Clear, with a low around 74. East southeast wind around 7 mph.
Monday
Scattered showers, mainly after noon. Mostly sunny, with a high near 90. East wind 6 to 15 mph. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 74. East southeast wind 6 to 9 mph.
Tuesday
Mostly sunny, with a high near 89. East wind 7 to 13 mph.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Scattered showers. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Thursday
Showers likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Ceiba PR
 18.44°N 66.33°W (Elev. 194 ft)
Last Update:
5:42 am AST May 17, 2024
Forecast Valid:
7am AST May 17, 2024-6pm AST May 23, 2024
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation