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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

82°F

28°C

Humidity 79%
Wind Speed E 6 mph
Barometer 30.04 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 25 Aug 7:56 am AST
Extended Forecast for

3 Miles WNW Luis Muñoz Marín International Airport PR

Extreme Heat Warning August 25, 10:00am until August 25, 05:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 93. Heat index values as high as 110. East wind 10 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 93 °F

    Showers
    Likely

  • Tonight

    Tonight: Scattered showers, mainly between midnight and 3am. Widespread haze before midnight, then widespread haze after 3am. Partly cloudy, with a low around 81. East wind 8 to 10 mph. Chance of precipitation is 40%.

    Low: 81 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Isolated showers after 3pm. Widespread haze. Sunny, with a high near 93. Heat index values as high as 109. East northeast wind 8 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 10%.

    High: 93 °F

    Haze then
    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 81. East northeast wind 10 to 13 mph. Chance of precipitation is 50%.

    Low: 81 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers. Partly sunny, with a high near 92. East northeast wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 92 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 81. East wind 9 to 11 mph. Chance of precipitation is 40%.

    Low: 81 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers, mainly after noon. Mostly sunny, with a high near 92. East wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 92 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers. Mostly cloudy, with a low around 81. East wind 11 to 13 mph. Chance of precipitation is 40%.

    Low: 81 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers. Partly sunny, with a high near 92. East wind 13 to 17 mph. Chance of precipitation is 50%.

    High: 92 °F

    Scattered
    Showers

Detailed Forecast

Today
Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 93. Heat index values as high as 110. East wind 10 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Scattered showers, mainly between midnight and 3am. Widespread haze before midnight, then widespread haze after 3am. Partly cloudy, with a low around 81. East wind 8 to 10 mph. Chance of precipitation is 40%.
Wednesday
Isolated showers after 3pm. Widespread haze. Sunny, with a high near 93. Heat index values as high as 109. East northeast wind 8 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 10%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 81. East northeast wind 10 to 13 mph. Chance of precipitation is 50%.
Thursday
Scattered showers. Partly sunny, with a high near 92. East northeast wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Thursday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 81. East wind 9 to 11 mph. Chance of precipitation is 40%.
Friday
Scattered showers, mainly after noon. Mostly sunny, with a high near 92. East wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 81. East wind 11 to 13 mph. Chance of precipitation is 40%.
Saturday
Scattered showers. Partly sunny, with a high near 92. East wind 13 to 17 mph. Chance of precipitation is 50%.
Saturday Night
Partly cloudy, with a low around 81.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 81.
Monday
Mostly sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Luis Muñoz Marín International Airport PR
 18.45°N 66.04°W (Elev. 7 ft)
Last Update:
8:13 am AST Aug 25, 2026
Forecast Valid:
8am AST Aug 25, 2026-6pm AST Aug 31, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation