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Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

88°F

31°C

Humidity 62%
Wind Speed E 17 G 26 mph
Barometer 30.01 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 11 Oct 12:56 pm AST
Extended Forecast for

San Isidro PR

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm before 3pm, then scattered showers and thunderstorms after 3pm. Mostly cloudy, with a high near 89. East wind 14 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 89 °F

    Showers
    Likely

  • Tonight

    Tonight: Scattered showers, mainly after midnight. Partly cloudy, with a low around 76. East southeast wind around 10 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

  • Columbus Day

    Columbus Day: Scattered showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then scattered showers after 3pm. Partly sunny, with a high near 89. East wind 9 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 89 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Scattered showers. Partly cloudy, with a low around 77. East wind 3 to 8 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 91. East wind 6 to 11 mph. Chance of precipitation is 60%.

    High: 91 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Scattered showers. Mostly cloudy, with a low around 76. East wind 6 to 13 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers. Partly sunny, with a high near 90. East wind 9 to 11 mph. Chance of precipitation is 40%.

    High: 90 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 76. East wind 5 to 8 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

  • Thursday

    Thursday: Showers likely, mainly after noon. Mostly cloudy, with a high near 92. East northeast wind 6 to 11 mph. Chance of precipitation is 60%.

    High: 92 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 3pm, then scattered showers and thunderstorms after 3pm. Mostly cloudy, with a high near 89. East wind 14 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Scattered showers, mainly after midnight. Partly cloudy, with a low around 76. East southeast wind around 10 mph. Chance of precipitation is 40%.
Columbus Day
Scattered showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then scattered showers after 3pm. Partly sunny, with a high near 89. East wind 9 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Scattered showers. Partly cloudy, with a low around 77. East wind 3 to 8 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 91. East wind 6 to 11 mph. Chance of precipitation is 60%.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 76. East wind 6 to 13 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers. Partly sunny, with a high near 90. East wind 9 to 11 mph. Chance of precipitation is 40%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 76. East wind 5 to 8 mph. Chance of precipitation is 40%.
Thursday
Showers likely, mainly after noon. Mostly cloudy, with a high near 92. East northeast wind 6 to 11 mph. Chance of precipitation is 60%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 77. Chance of precipitation is 30%.
Friday
Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 75.
Saturday
Scattered showers. Partly sunny, with a high near 92. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
San Isidro PR
 18.4°N 65.9°W (Elev. 52 ft)
Last Update:
6:55 am AST Oct 11, 2026
Forecast Valid:
1pm AST Oct 11, 2026-6pm AST Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation