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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

86°F

30°C

Humidity 70%
Wind Speed NE 13 mph
Barometer 29.98 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 5 Oct 11:56 am AST
Extended Forecast for

San Isidro PR

Heat Advisory October 5, 12:38pm until October 5, 03:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 5, 12:38pm until October 5, 03:00pm

    NOW until 3:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 91 °F⇓

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. East southeast wind 7 to 9 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 76 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly after 9am. Partly sunny, with a high near 91. East wind 8 to 13 mph. Chance of precipitation is 40%.

    High: 91 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers. Partly cloudy, with a low around 76. East wind around 9 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 88. Southeast wind 10 to 14 mph. Chance of precipitation is 50%.

    High: 88 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers, mainly before midnight. Partly cloudy, with a low around 75. Southeast wind around 9 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    Showers

  • Thursday

    Thursday: Showers likely, mainly after noon. Mostly cloudy, with a high near 93. East wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 93 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Scattered showers. Mostly cloudy, with a low around 76. East southeast wind around 9 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Partly sunny, with a temperature falling to around 84 by 5pm. East wind 11 to 14 mph. Chance of precipitation is 50%.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. East southeast wind 7 to 9 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Scattered showers, mainly after 9am. Partly sunny, with a high near 91. East wind 8 to 13 mph. Chance of precipitation is 40%.
Tuesday Night
Scattered showers. Partly cloudy, with a low around 76. East wind around 9 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 88. Southeast wind 10 to 14 mph. Chance of precipitation is 50%.
Wednesday Night
Scattered showers, mainly before midnight. Partly cloudy, with a low around 75. Southeast wind around 9 mph. Chance of precipitation is 30%.
Thursday
Showers likely, mainly after noon. Mostly cloudy, with a high near 93. East wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 76. East southeast wind around 9 mph. Chance of precipitation is 40%.
Friday
Scattered showers, mainly after noon. Mostly sunny, with a high near 90. East wind 10 to 15 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 75.
Saturday
Scattered showers. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Isidro PR
 18.4°N 65.89°W (Elev. 23 ft)
Last Update:
4:25 am AST Oct 5, 2026
Forecast Valid:
12pm AST Oct 5, 2026-6pm AST Oct 11, 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