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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

84°F

29°C

Humidity 77%
Wind Speed SE 12 G 20 mph
Barometer 29.93 in (1013.5 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 14 Nov 1:56 am AST
Extended Forecast for

3 Miles SSE Guaynabo PR

Heat Advisory November 14, 10:00am until November 14, 05:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Isolated showers. Partly cloudy, with a low around 79. South southeast wind around 11 mph. Chance of precipitation is 10%.

    Low: 79 °F

    Isolated
    Showers

  • Saturday

    Saturday: Isolated showers between noon and 3pm. Sunny, with a high near 87. South southeast wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.

    High: 87 °F

    Sunny then
    Isolated
    Showers

  • Saturday Night

    Saturday Night: Clear, with a low around 77. South southeast wind around 7 mph.

    Low: 77 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 88. Southeast wind 5 to 11 mph.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Isolated showers after midnight. Mostly clear, with a low around 75. Southeast wind 3 to 5 mph. Chance of precipitation is 10%.

    Low: 75 °F

    Mostly Clear
    then Isolated
    Showers

  • Monday

    Monday: Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East wind 5 to 13 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. East southeast wind 3 to 7 mph.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 85. East wind 5 to 11 mph. Chance of precipitation is 30%.

    High: 85 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 76. East wind around 6 mph.

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 79. South southeast wind around 11 mph. Chance of precipitation is 10%.
Saturday
Isolated showers between noon and 3pm. Sunny, with a high near 87. South southeast wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.
Saturday Night
Clear, with a low around 77. South southeast wind around 7 mph.
Sunday
Sunny, with a high near 88. Southeast wind 5 to 11 mph.
Sunday Night
Isolated showers after midnight. Mostly clear, with a low around 75. Southeast wind 3 to 5 mph. Chance of precipitation is 10%.
Monday
Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East wind 5 to 13 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 77. East southeast wind 3 to 7 mph.
Tuesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 85. East wind 5 to 11 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 76. East wind around 6 mph.
Wednesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Thursday
Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 75.
Friday
Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Guaynabo PR
 18.35°N 66.1°W (Elev. 285 ft)
Last Update:
1:27 am AST Nov 14, 2026
Forecast Valid:
2am AST Nov 14, 2026-6pm AST Nov 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation