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Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

88°F

31°C

Humidity 66%
Wind Speed E 20 mph
Barometer 30.05 in
Dewpoint 75°F (24°C)
Visibility 8.00 mi
Heat Index98°F (37°C)
Last update 16 Aug 9:56 am AST
Extended Forecast for

2 Miles NW Sumidero PR

Heat Advisory August 16, 10:39am until August 16, 05:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 10:39am until August 16, 05:00pm

    NOW until 5:00pm Sun

    Heat Advisory

  • Today

    High: 85 °F

    Scattered
    Showers

  • Tonight

    Tonight: Isolated showers between 9pm and 3am. Widespread haze before 9pm. Mostly clear, with a low around 73. East wind 3 to 5 mph. Chance of precipitation is 10%.

    Low: 73 °F

    Isolated
    Showers

  • Monday

    Monday: Isolated showers before noon. Sunny, with a high near 85. East wind 8 to 13 mph. Chance of precipitation is 10%.

    High: 85 °F

    Isolated
    Showers then
    Sunny

  • Monday Night

    Monday Night: Isolated showers after midnight. Mostly clear, with a low around 72. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.

    Low: 72 °F

    Clear then
    Isolated
    Showers

  • Tuesday

    Tuesday: Isolated showers. Mostly sunny, with a high near 86. East wind 7 to 11 mph. Chance of precipitation is 20%.

    High: 86 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Clear, with a low around 72. East wind 3 to 5 mph.

    Low: 72 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. East wind 6 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Scattered showers. Partly cloudy, with a low around 73. Southeast wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Scattered
    Showers

Detailed Forecast

Today
Scattered showers, mainly between noon and 3pm. Widespread haze before noon, then widespread haze after 3pm. Mostly sunny, with a high near 85. East wind 11 to 14 mph. Chance of precipitation is 30%.
Tonight
Isolated showers between 9pm and 3am. Widespread haze before 9pm. Mostly clear, with a low around 73. East wind 3 to 5 mph. Chance of precipitation is 10%.
Monday
Isolated showers before noon. Sunny, with a high near 85. East wind 8 to 13 mph. Chance of precipitation is 10%.
Monday Night
Isolated showers after midnight. Mostly clear, with a low around 72. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.
Tuesday
Isolated showers. Mostly sunny, with a high near 86. East wind 7 to 11 mph. Chance of precipitation is 20%.
Tuesday Night
Clear, with a low around 72. East wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 84. East wind 6 to 10 mph.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 73. Southeast wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
Scattered showers. Mostly sunny, with a high near 84. East southeast wind 7 to 13 mph. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 73.
Friday
Sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 72.
Saturday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Sumidero PR
 18.23°N 66.16°W (Elev. 1414 ft)
Last Update:
9:48 am AST Aug 16, 2026
Forecast Valid:
10am AST Aug 16, 2026-6pm AST Aug 22, 2026
 
Forecast Discussion
 
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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