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

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

90°F

32°C

Humidity 63%
Wind Speed E 15 G 21 mph
Barometer 30.01 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 28 Aug 11:56 am AST
Extended Forecast for

2 Miles NNE Catano PR

Heat Advisory August 28, 12:39pm until August 28, 05:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 28, 12:39pm until August 28, 05:00pm

    NOW until 5:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 86 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers, then showers likely and possibly a thunderstorm after 3am. Partly cloudy, with a low around 82. East wind around 10 mph. Chance of precipitation is 60%.

    Low: 82 °F

    Isolated
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Scattered showers, mainly before noon. Mostly sunny, with a high near 86. East wind 11 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers after midnight. Increasing clouds, with a low around 82. East northeast wind around 14 mph. Chance of precipitation is 40%.

    Low: 82 °F

    Clear then
    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 85. East northeast wind 16 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    High: 85 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 82. Southeast wind 6 to 14 mph. Chance of precipitation is 70%.

    Low: 82 °F

    Scattered
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly after noon. Partly sunny, with a high near 85. East southeast wind 5 to 10 mph becoming light in the afternoon. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Scattered showers. Partly cloudy, with a low around 82. East southeast wind 5 to 7 mph. Chance of precipitation is 50%.

    Low: 82 °F

    Scattered
    Showers

Detailed Forecast

This Afternoon
Isolated showers. Mostly sunny, with a high near 86. East wind around 17 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tonight
Isolated showers, then showers likely and possibly a thunderstorm after 3am. Partly cloudy, with a low around 82. East wind around 10 mph. Chance of precipitation is 60%.
Saturday
Scattered showers, mainly before noon. Mostly sunny, with a high near 86. East wind 11 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Saturday Night
Scattered showers after midnight. Increasing clouds, with a low around 82. East northeast wind around 14 mph. Chance of precipitation is 40%.
Sunday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 85. East northeast wind 16 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Sunday Night
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 82. Southeast wind 6 to 14 mph. Chance of precipitation is 70%.
Monday
Showers likely, mainly after noon. Partly sunny, with a high near 85. East southeast wind 5 to 10 mph becoming light in the afternoon. Chance of precipitation is 60%.
Monday Night
Scattered showers. Partly cloudy, with a low around 82. East southeast wind 5 to 7 mph. Chance of precipitation is 50%.
Tuesday
Scattered showers. Mostly cloudy, with a high near 85. East wind 6 to 8 mph. Chance of precipitation is 50%.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 82. Chance of precipitation is 50%.
Wednesday
Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Wednesday Night
Partly cloudy, with a low around 82.
Thursday
Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Catano PR
 18.47°N 66.1°W (Elev. 0 ft)
Last Update:
10:29 am AST Aug 28, 2026
Forecast Valid:
12pm AST Aug 28, 2026-6pm AST Sep 3, 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