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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 NE 18 G 25 mph
Barometer 29.89 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 12 Oct 2:56 pm AST
Extended Forecast for

San Isidro PR

  • Columbus Day

    Columbus Day: Isolated showers. Mostly sunny, with a high near 93. East wind around 13 mph. Chance of precipitation is 10%.

    High: 93 °F

    Isolated
    Showers

  • Tonight

    Tonight: Scattered showers. Partly cloudy, with a low around 77. East wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Showers likely before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Partly sunny, with a high near 90. East wind 8 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 90 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Scattered showers. Mostly cloudy, with a low around 77. East wind 6 to 9 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers. Partly sunny, with a high near 91. East wind 6 to 13 mph. Chance of precipitation is 40%.

    High: 91 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 77. East wind around 6 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers, mainly before noon. Mostly sunny, with a high near 90. East northeast wind 9 to 11 mph. Chance of precipitation is 40%.

    High: 90 °F

    Scattered
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Scattered showers. Mostly cloudy, with a low around 76. East wind around 7 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers. Partly sunny, with a high near 92. East wind 7 to 11 mph. Chance of precipitation is 40%.

    High: 92 °F

    Scattered
    Showers

Detailed Forecast

Columbus Day
Isolated showers. Mostly sunny, with a high near 93. East wind around 13 mph. Chance of precipitation is 10%.
Tonight
Scattered showers. Partly cloudy, with a low around 77. East wind 6 to 8 mph. Chance of precipitation is 30%.
Tuesday
Showers likely before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Partly sunny, with a high near 90. East wind 8 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 77. East wind 6 to 9 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers. Partly sunny, with a high near 91. East wind 6 to 13 mph. Chance of precipitation is 40%.
Wednesday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 77. East wind around 6 mph. Chance of precipitation is 30%.
Thursday
Scattered showers, mainly before noon. Mostly sunny, with a high near 90. East northeast wind 9 to 11 mph. Chance of precipitation is 40%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 76. East wind around 7 mph. Chance of precipitation is 40%.
Friday
Scattered showers. Partly sunny, with a high near 92. East wind 7 to 11 mph. Chance of precipitation is 40%.
Friday Night
Mostly clear, with a low around 77.
Saturday
Scattered showers. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Saturday Night
Partly cloudy, with a low around 77.
Sunday
Showers likely. Mostly cloudy, with a high near 93. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Isidro PR
 18.39°N 65.89°W (Elev. 46 ft)
Last Update:
1:35 pm AST Oct 12, 2026
Forecast Valid:
3pm AST Oct 12, 2026-6pm AST Oct 18, 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