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

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

84°F

29°C

Humidity 74%
Wind Speed SE 8 mph
Barometer 29.93 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 14 Nov 5:56 am AST
Extended Forecast for

San Isidro PR

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

  • Today

    Today: Isolated showers after 3pm. Sunny, with a high near 91. South southeast wind 11 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 10%.

    High: 91 °F

    Sunny then
    Isolated
    Showers

  • Tonight

    Tonight: Clear, with a low around 77. South southeast wind around 9 mph.

    Low: 77 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 91. Southeast wind 8 to 14 mph.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 76. East southeast wind around 7 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers. Partly sunny, with a high near 89. East wind 8 to 14 mph. Chance of precipitation is 40%.

    High: 89 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 77. East wind 7 to 10 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly before noon. Mostly sunny, with a high near 91. East wind 9 to 13 mph. Chance of precipitation is 30%.

    High: 91 °F

    Scattered
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 76. East wind around 9 mph.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Scattered showers. Partly sunny, with a high near 90. East wind 8 to 11 mph. Chance of precipitation is 40%.

    High: 90 °F

    Scattered
    Showers

Detailed Forecast

Today
Isolated showers after 3pm. Sunny, with a high near 91. South southeast wind 11 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 10%.
Tonight
Clear, with a low around 77. South southeast wind around 9 mph.
Sunday
Sunny, with a high near 91. Southeast wind 8 to 14 mph.
Sunday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 76. East southeast wind around 7 mph. Chance of precipitation is 30%.
Monday
Scattered showers. Partly sunny, with a high near 89. East wind 8 to 14 mph. Chance of precipitation is 40%.
Monday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 77. East wind 7 to 10 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers, mainly before noon. Mostly sunny, with a high near 91. East wind 9 to 13 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 76. East wind around 9 mph.
Wednesday
Scattered showers. Partly sunny, with a high near 90. East wind 8 to 11 mph. Chance of precipitation is 40%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 76. Chance of precipitation is 40%.
Thursday
Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 75.
Friday
Scattered showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Isidro PR
 18.4°N 65.89°W (Elev. 23 ft)
Last Update:
3:23 am AST Nov 14, 2026
Forecast Valid:
6am AST Nov 14, 2026-6pm AST Nov 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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