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

Severe Weather, Excessive Rainfall and Heat Concerns This Weekend

Clusters of showers and strong to severe thunderstorms are expected across portions of the southern Plains today, then tracking into the Lower Mississippi Valley. The greatest hazards today will be from large hail and damaging wind gusts. Elsewhere, excessive rainfall and flooding concerns across portions of the Plains and Midwest today. Excessive heat continues across Puerto Rico this weekend. 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

94°F

34°C

Humidity 52%
Wind Speed E 17 G 25 mph
Barometer 30.00 in (1015.6 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 10 Jun 1:56 pm AST
Extended Forecast for

San Juan PR

Excessive Heat Watch June 10, 05:00pm until June 12, 01:00pm
Excessive Heat Warning until June 10, 05:00pm
Click here for hazard details and duration
Excessive Heat Watch
Excessive Heat Warning
  •  
    Excessive Heat Warning until June 10, 05:00pm

    NOW until
    5:00pm Sat

    Excessive Heat Warning

  • This
    Afternoon

    This Afternoon: Scattered showers, mainly after 3pm. Mostly sunny, with a high near 93. Heat index values as high as 106. East southeast wind 18 to 20 mph. Chance of precipitation is 30%.

    Scattered
    Showers

    High: 93 °F

  • Tonight

    Tonight: Isolated showers after 9pm. Mostly clear, with a low around 80. East southeast wind 7 to 9 mph. Chance of precipitation is 10%.

    Isolated
    Showers

    Low: 80 °F

  • Sunday

    Sunday: Isolated showers. Mostly sunny, with a high near 91. Heat index values as high as 102. East wind 11 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 10%.

    Isolated
    Showers

    High: 91 °F

  • Sunday
    Night

    Sunday Night: Isolated showers. Partly cloudy, with a low around 78. East wind 9 to 11 mph. Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 78 °F

  • Monday

    Monday: Isolated showers. Sunny, with a high near 89. East wind 13 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Isolated
    Showers

    High: 89 °F

  • Monday
    Night

    Monday Night: Isolated showers. Mostly clear, with a low around 77. East wind 10 to 13 mph. Chance of precipitation is 10%.

    Isolated
    Showers

    Low: 77 °F

  • Tuesday

    Tuesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 89. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Mostly Sunny
    then
    Scattered
    Showers

    High: 89 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 77. East southeast wind around 9 mph.

    Partly Cloudy

    Low: 77 °F

Detailed Forecast

This Afternoon
Scattered showers, mainly after 3pm. Mostly sunny, with a high near 93. Heat index values as high as 106. East southeast wind 18 to 20 mph. Chance of precipitation is 30%.
Tonight
Isolated showers after 9pm. Mostly clear, with a low around 80. East southeast wind 7 to 9 mph. Chance of precipitation is 10%.
Sunday
Isolated showers. Mostly sunny, with a high near 91. Heat index values as high as 102. East wind 11 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 10%.
Sunday Night
Isolated showers. Partly cloudy, with a low around 78. East wind 9 to 11 mph. Chance of precipitation is 20%.
Monday
Isolated showers. Sunny, with a high near 89. East wind 13 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Monday Night
Isolated showers. Mostly clear, with a low around 77. East wind 10 to 13 mph. Chance of precipitation is 10%.
Tuesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 89. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 77. East southeast wind around 9 mph.
Wednesday
Mostly sunny, with a high near 89. East southeast wind 10 to 17 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 77.
Thursday
Scattered showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 77. Chance of precipitation is 30%.
Friday
Scattered showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
San Juan PR
 18.41°N 66.08°W (Elev. 16 ft)
Last Update:
10:23 am AST Jun 10, 2023
Forecast Valid:
2pm AST Jun 10, 2023-6pm AST Jun 16, 2023
 
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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