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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.

A Few Clouds

82°F

28°C

Humidity 79%
Wind Speed E 18 G 26 mph
Barometer 30.06 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 15 Aug 3:56 am AST
Extended Forecast for

Caguas PR

Heat Advisory August 15, 10:00am until August 15, 05:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Isolated showers. Widespread haze. Partly cloudy, with a low around 79. East northeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 79 °F

    Isolated
    Showers

  • Saturday

    Saturday: Scattered showers, mainly after 3pm. Widespread haze between 9am and 3pm. Mostly sunny, with a high near 92. Heat index values as high as 103. East northeast wind 10 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 92 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 77. East wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 77 °F

    Showers
    Likely

  • Sunday

    Sunday: Scattered showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 89. East wind 8 to 14 mph. Chance of precipitation is 40%.

    High: 89 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Isolated showers. Partly cloudy, with a low around 77. East wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Isolated
    Showers

  • Monday

    Monday: Isolated showers. Mostly sunny, with a high near 92. East wind 11 to 13 mph. Chance of precipitation is 20%.

    High: 92 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. East wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 92. East wind 6 to 13 mph.

    High: 92 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 78. Light east wind.

    Low: 78 °F

    Partly Cloudy

Detailed Forecast

Overnight
Isolated showers. Widespread haze. Partly cloudy, with a low around 79. East northeast wind around 6 mph. Chance of precipitation is 20%.
Saturday
Scattered showers, mainly after 3pm. Widespread haze between 9am and 3pm. Mostly sunny, with a high near 92. Heat index values as high as 103. East northeast wind 10 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Saturday Night
Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 77. East wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Scattered showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 89. East wind 8 to 14 mph. Chance of precipitation is 40%.
Sunday Night
Isolated showers. Partly cloudy, with a low around 77. East wind 3 to 6 mph. Chance of precipitation is 20%.
Monday
Isolated showers. Mostly sunny, with a high near 92. East wind 11 to 13 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 77. East wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 92. East wind 6 to 13 mph.
Tuesday Night
Partly cloudy, with a low around 78. Light east wind.
Wednesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 78.
Thursday
Scattered showers. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 78. Chance of precipitation is 50%.
Friday
Scattered showers. Partly sunny, with a high near 92. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Caguas PR
 18.24°N 66.05°W (Elev. 449 ft)
Last Update:
4:06 am AST Aug 15, 2026
Forecast Valid:
4am AST Aug 15, 2026-6pm AST Aug 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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