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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.

Overcast

88°F

31°C

Humidity 59%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 11 Oct 1:56 pm AST
Extended Forecast for

3 Miles W Guaynabo PR

Flood Advisory until October 11, 03:00pm
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until October 11, 03:00pm

    NOW until 3:00pm Sun

    Flood Advisory

  • This Afternoon

    High: 88 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly between midnight and 3am. Partly cloudy, with a low around 78. East southeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Columbus Day

    Columbus Day: Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 89. Heat index values as high as 104. East wind 7 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 89 °F

    Scattered
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Isolated showers. Partly cloudy, with a low around 79. Southeast wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 79 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Scattered showers, then showers and possibly a thunderstorm after noon. High near 88. East northeast wind 5 to 11 mph. Chance of precipitation is 80%.

    High: 88 °F

    Scattered
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers. Partly cloudy, with a low around 79. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 10%.

    Low: 79 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after noon. Partly sunny, with a high near 89. East northeast wind 5 to 13 mph. Chance of precipitation is 60%.

    High: 89 °F

    Scattered
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Scattered showers. Partly cloudy, with a low around 80. East wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 80 °F

    Scattered
    Showers

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Partly sunny, with a high near 88. East southeast wind around 15 mph. Chance of precipitation is 50%.
Tonight
Scattered showers, mainly between midnight and 3am. Partly cloudy, with a low around 78. East southeast wind around 6 mph. Chance of precipitation is 30%.
Columbus Day
Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 89. Heat index values as high as 104. East wind 7 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Isolated showers. Partly cloudy, with a low around 79. Southeast wind 3 to 6 mph. Chance of precipitation is 20%.
Tuesday
Scattered showers, then showers and possibly a thunderstorm after noon. High near 88. East northeast wind 5 to 11 mph. Chance of precipitation is 80%.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 79. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 10%.
Wednesday
Showers likely, mainly after noon. Partly sunny, with a high near 89. East northeast wind 5 to 13 mph. Chance of precipitation is 60%.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 80. East wind 5 to 7 mph. Chance of precipitation is 30%.
Thursday
Scattered showers, mainly after noon. Partly sunny, with a high near 89. East northeast wind 6 to 13 mph. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 79.
Friday
Mostly sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 78.
Saturday
Scattered showers. Partly sunny, with a high near 89. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Guaynabo PR
 18.38°N 66.16°W (Elev. 56 ft)
Last Update:
1:26 pm AST Oct 11, 2026
Forecast Valid:
2pm AST Oct 11, 2026-6pm AST Oct 17, 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