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

88°F

31°C

Humidity 66%
Wind Speed NE 18 G 24 mph
Barometer 29.99 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 17 Aug 4:56 pm AST
Extended Forecast for

Toa Baja PR

  • Tonight

    Tonight: Isolated showers between midnight and 3am. Mostly clear, with a low around 77. East southeast wind 5 to 13 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Clear then
    Isolated
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly after 3pm. Increasing clouds, with a high near 91. Heat index values as high as 109. Light east wind becoming east northeast 13 to 18 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    High: 91 °F

    Sunny then
    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers after 9pm. Partly cloudy, with a low around 77. East southeast wind 7 to 11 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly before noon. Mostly sunny, with a high near 92. Heat index values as high as 111. East southeast wind 7 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 92 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 77. East southeast wind 6 to 8 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers after noon. Mostly sunny, with a high near 93. East wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 93 °F

    Sunny then
    Scattered
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. East southeast wind 8 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 92. East northeast wind 10 to 20 mph.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 77. East wind around 11 mph.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

Tonight
Isolated showers between midnight and 3am. Mostly clear, with a low around 77. East southeast wind 5 to 13 mph. Chance of precipitation is 20%.
Tuesday
Scattered showers, mainly after 3pm. Increasing clouds, with a high near 91. Heat index values as high as 109. Light east wind becoming east northeast 13 to 18 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Isolated showers after 9pm. Partly cloudy, with a low around 77. East southeast wind 7 to 11 mph. Chance of precipitation is 20%.
Wednesday
Scattered showers, mainly before noon. Mostly sunny, with a high near 92. Heat index values as high as 111. East southeast wind 7 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 77. East southeast wind 6 to 8 mph. Chance of precipitation is 40%.
Thursday
Scattered showers after noon. Mostly sunny, with a high near 93. East wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 77. East southeast wind 8 to 10 mph.
Friday
Mostly sunny, with a high near 92. East northeast wind 10 to 20 mph.
Friday Night
Partly cloudy, with a low around 77. East wind around 11 mph.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 77.
Monday
Mostly sunny, with a high near 92.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Toa Baja PR
 18.44°N 66.28°W (Elev. 56 ft)
Last Update:
3:46 pm AST Aug 17, 2026
Forecast Valid:
5pm AST Aug 17, 2026-6pm AST Aug 24, 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