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Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

85°F

29°C

Humidity 77%
Wind Speed E 5 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 12 Oct 8:56 am AST
Extended Forecast for

Toa Baja PR

  • Columbus Day

    Columbus Day: Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 91. Heat index values as high as 109. East wind 8 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Scattered
    Showers

  • Tonight

    Tonight: Isolated showers. Partly cloudy, with a low around 77. East southeast wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 20%.

    Low: 77 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Scattered showers, then showers likely and possibly a thunderstorm after noon. Increasing clouds, with a high near 88. Heat index values as high as 106. East northeast wind 7 to 11 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 88 °F

    Scattered
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Isolated showers. Partly cloudy, with a low around 77. East wind 5 to 8 mph. Chance of precipitation is 10%.

    Low: 77 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Isolated showers, then scattered showers and thunderstorms after noon. Mostly sunny, with a high near 89. East northeast wind 5 to 14 mph. Chance of precipitation is 50%.

    High: 89 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Isolated showers. Partly cloudy, with a low around 78. East wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Isolated
    Showers

  • Thursday

    Thursday: Scattered showers, mainly before noon. Mostly sunny, with a high near 88. East northeast wind 9 to 13 mph. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Scattered showers. Mostly cloudy, with a low around 77. East wind around 7 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers, mainly before noon. Mostly sunny, with a high near 90. East northeast wind 6 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 90 °F

    Scattered
    Showers then
    Mostly Sunny

Detailed Forecast

Columbus Day
Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 91. Heat index values as high as 109. East wind 8 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Isolated showers. Partly cloudy, with a low around 77. East southeast wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 20%.
Tuesday
Scattered showers, then showers likely and possibly a thunderstorm after noon. Increasing clouds, with a high near 88. Heat index values as high as 106. East northeast wind 7 to 11 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 77. East wind 5 to 8 mph. Chance of precipitation is 10%.
Wednesday
Isolated showers, then scattered showers and thunderstorms after noon. Mostly sunny, with a high near 89. East northeast wind 5 to 14 mph. Chance of precipitation is 50%.
Wednesday Night
Isolated showers. Partly cloudy, with a low around 78. East wind 6 to 8 mph. Chance of precipitation is 20%.
Thursday
Scattered showers, mainly before noon. Mostly sunny, with a high near 88. East northeast wind 9 to 13 mph. Chance of precipitation is 30%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 77. East wind around 7 mph. Chance of precipitation is 40%.
Friday
Scattered showers, mainly before noon. Mostly sunny, with a high near 90. East northeast wind 6 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 77.
Saturday
Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 77.
Sunday
Scattered showers. Partly sunny, with a high near 91. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Toa Baja PR
 18.45°N 66.25°W (Elev. 10 ft)
Last Update:
4:45 am AST Oct 12, 2026
Forecast Valid:
9am AST Oct 12, 2026-6pm AST Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation