National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines
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 SW 5 mph
Barometer 29.84 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 4 Nov 5:56 pm AST
Extended Forecast for

4 Miles S Trujillo Alto PR

  • Tonight

    Tonight: Scattered showers before midnight, then isolated showers after 3am. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%.

    Low: 74 °F

    Scattered
    Showers

  • Thursday

    Thursday: Isolated showers, then showers and possibly a thunderstorm after noon. High near 87. Calm wind. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 87 °F

    Isolated
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Scattered showers, mainly before 3am. Partly cloudy, with a low around 73. Light south southwest wind. Chance of precipitation is 30%.

    Low: 73 °F

    Scattered
    Showers

  • Friday

    Friday: Isolated showers before 9am, then scattered showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Increasing clouds, with a high near 86. West southwest wind 5 to 9 mph. Chance of precipitation is 70%.

    High: 86 °F

    Scattered
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Isolated showers. Partly cloudy, with a low around 73. Southwest wind 3 to 5 mph. Chance of precipitation is 10%.

    Low: 73 °F

    Isolated
    Showers

  • Saturday

    Saturday: Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 86. West wind 3 to 6 mph. Chance of precipitation is 70%.

    High: 86 °F

    Scattered
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. Light west southwest wind.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely after noon. Mostly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 84 °F

    Sunny then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
Scattered showers before midnight, then isolated showers after 3am. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%.
Thursday
Isolated showers, then showers and possibly a thunderstorm after noon. High near 87. Calm wind. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Thursday Night
Scattered showers, mainly before 3am. Partly cloudy, with a low around 73. Light south southwest wind. Chance of precipitation is 30%.
Friday
Isolated showers before 9am, then scattered showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Increasing clouds, with a high near 86. West southwest wind 5 to 9 mph. Chance of precipitation is 70%.
Friday Night
Isolated showers. Partly cloudy, with a low around 73. Southwest wind 3 to 5 mph. Chance of precipitation is 10%.
Saturday
Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 86. West wind 3 to 6 mph. Chance of precipitation is 70%.
Saturday Night
Partly cloudy, with a low around 73. Light west southwest wind.
Sunday
Showers likely after noon. Mostly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Sunday Night
Mostly clear, with a low around 74. Calm wind.
Monday
Scattered showers, mainly after noon. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Scattered showers. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 73.
Veterans Day
Mostly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Trujillo Alto PR
 18.31°N 66.01°W (Elev. 610 ft)
Last Update:
4:14 pm AST Nov 4, 2026
Forecast Valid:
6pm AST Nov 4, 2026-6pm AST Nov 11, 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