National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

82°F

28°C

Humidity 79%
Wind Speed E 10 mph
Barometer 30.04 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 17 Aug 9:56 pm AST
Extended Forecast for

3 Miles ESE Cayey PR

  • Tonight

    Tonight: Isolated showers between midnight and 3am. Mostly clear, with a low around 72. Light east northeast wind. Chance of precipitation is 10%.

    Low: 72 °F

    Clear then
    Isolated
    Showers

  • Tuesday

    Tuesday: Isolated showers after 9am. Sunny, with a high near 84. East wind 7 to 13 mph. Chance of precipitation is 10%.

    High: 84 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers, mainly after 3am. Partly cloudy, with a low around 73. East northeast wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly before noon. Mostly sunny, with a high near 83. Southeast wind 6 to 10 mph. Chance of precipitation is 30%.

    High: 83 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers. Partly cloudy, with a low around 73. East wind around 6 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers, mainly before noon. Mostly sunny, with a high near 84. East wind 10 to 14 mph. Chance of precipitation is 40%.

    High: 84 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 73. East northeast wind around 8 mph.

    Low: 73 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84. East wind 9 to 13 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Scattered showers. Mostly cloudy, with a low around 73. East northeast wind around 6 mph. Chance of precipitation is 40%.

    Low: 73 °F

    Scattered
    Showers

Detailed Forecast

Tonight
Isolated showers between midnight and 3am. Mostly clear, with a low around 72. Light east northeast wind. Chance of precipitation is 10%.
Tuesday
Isolated showers after 9am. Sunny, with a high near 84. East wind 7 to 13 mph. Chance of precipitation is 10%.
Tuesday Night
Scattered showers, mainly after 3am. Partly cloudy, with a low around 73. East northeast wind 3 to 6 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers, mainly before noon. Mostly sunny, with a high near 83. Southeast wind 6 to 10 mph. Chance of precipitation is 30%.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 73. East wind around 6 mph. Chance of precipitation is 30%.
Thursday
Scattered showers, mainly before noon. Mostly sunny, with a high near 84. East wind 10 to 14 mph. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 73. East northeast wind around 8 mph.
Friday
Mostly sunny, with a high near 84. East wind 9 to 13 mph.
Friday Night
Scattered showers. Mostly cloudy, with a low around 73. East northeast wind around 6 mph. Chance of precipitation is 40%.
Saturday
Scattered showers, mainly before noon. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 73.
Monday
Scattered showers. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Cayey PR
 18.1°N 66.13°W (Elev. 1631 ft)
Last Update:
3:46 pm AST Aug 17, 2026
Forecast Valid:
10pm AST Aug 17, 2026-6pm AST Aug 24, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation