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

Regional Outbreaks of Severe Weather Through Early Next Week; Early Season Heat Wave across the South

Active spring pattern across the center of our nation with several episodes of severe weather and heavy rainfall expected into next week. The potential for very large hail, long track tornadoes, severe wind gusts, frequent cloud to ground lightning strikes and flash flooding are in the outlook. Furthermore, dangerous early season heat wave continues for the Gulf Coast states into early next week. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

75°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 29.97 in (1014.7 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 17 May 4:56 am AST
Extended Forecast for

San Juan PR

  • Overnight

    Overnight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 74. Light east wind. Chance of precipitation is 50%.

    Low: 74 °F

    Scattered
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Cloudy through mid morning, then becoming mostly sunny, with a high near 86. East wind 5 to 11 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    High: 86 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Scattered showers before midnight, then scattered showers and thunderstorms between midnight and 3am, then scattered showers after 3am. Mostly cloudy, with a low around 74. East southeast wind 5 to 8 mph. Chance of precipitation is 50%.

    Low: 74 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers, then showers likely and possibly a thunderstorm after 9am. Mostly cloudy, with a high near 87. East wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 75. East southeast wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely

  • Monday

    Monday: Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 89. East wind 6 to 11 mph. Chance of precipitation is 60%.

    High: 89 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 76. East southeast wind 3 to 7 mph. Chance of precipitation is 60%.

    Low: 76 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Scattered showers. Partly sunny, with a high near 90. East wind 6 to 11 mph. Chance of precipitation is 50%.

    High: 90 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers. Mostly cloudy, with a low around 76. East southeast wind around 7 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

Detailed Forecast

Overnight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 74. Light east wind. Chance of precipitation is 50%.
Saturday
Showers likely and possibly a thunderstorm before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Cloudy through mid morning, then becoming mostly sunny, with a high near 86. East wind 5 to 11 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
Scattered showers before midnight, then scattered showers and thunderstorms between midnight and 3am, then scattered showers after 3am. Mostly cloudy, with a low around 74. East southeast wind 5 to 8 mph. Chance of precipitation is 50%.
Sunday
Scattered showers, then showers likely and possibly a thunderstorm after 9am. Mostly cloudy, with a high near 87. East wind 5 to 10 mph. Chance of precipitation is 60%.
Sunday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 75. East southeast wind 6 to 8 mph. Chance of precipitation is 60%.
Monday
Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 89. East wind 6 to 11 mph. Chance of precipitation is 60%.
Monday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 76. East southeast wind 3 to 7 mph. Chance of precipitation is 60%.
Tuesday
Scattered showers. Partly sunny, with a high near 90. East wind 6 to 11 mph. Chance of precipitation is 50%.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 76. East southeast wind around 7 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers. Partly sunny, with a high near 90. Chance of precipitation is 50%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 76. Chance of precipitation is 40%.
Thursday
Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 50%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 77. Chance of precipitation is 30%.
Friday
Scattered showers. Partly sunny, with a high near 90. Chance of precipitation is 50%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 56 ft)
Last Update:
4:03 am AST May 17, 2025
Forecast Valid:
5am AST May 17, 2025-6pm AST May 23, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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