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Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Mostly Cloudy

79°F

26°C

Humidity 84%
Wind Speed E 10 mph
Barometer 29.96 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 4 Oct 3:56 pm AST
Extended Forecast for

Trujillo Alto PR

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm. Cloudy, with a steady temperature around 83. East southeast wind around 13 mph. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind 3 to 7 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 76 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then scattered showers and thunderstorms after 3pm. Mostly cloudy, with a high near 90. Heat index values as high as 103. Light southeast wind becoming east southeast 9 to 14 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 90 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. Southeast wind 5 to 7 mph. Chance of precipitation is 50%.

    Low: 77 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 89. East wind 6 to 13 mph. Chance of precipitation is 30%.

    High: 89 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers, mainly before midnight. Partly cloudy, with a low around 77. East wind 3 to 7 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly after noon. Partly sunny, with a high near 86. East wind 8 to 13 mph. Chance of precipitation is 50%.

    High: 86 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Wednesday Night

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

    Low: 76 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers. Mostly cloudy, with a high near 89. East wind 6 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 89 °F

    Scattered
    Showers

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Cloudy, with a steady temperature around 83. East southeast wind around 13 mph. Chance of precipitation is 70%.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind 3 to 7 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Scattered showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then scattered showers and thunderstorms after 3pm. Mostly cloudy, with a high near 90. Heat index values as high as 103. Light southeast wind becoming east southeast 9 to 14 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 77. Southeast wind 5 to 7 mph. Chance of precipitation is 50%.
Tuesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 89. East wind 6 to 13 mph. Chance of precipitation is 30%.
Tuesday Night
Scattered showers, mainly before midnight. Partly cloudy, with a low around 77. East wind 3 to 7 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers, mainly after noon. Partly sunny, with a high near 86. East wind 8 to 13 mph. Chance of precipitation is 50%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 76. Southeast wind 5 to 8 mph. Chance of precipitation is 40%.
Thursday
Scattered showers. Mostly cloudy, with a high near 89. East wind 6 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
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 89. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 76.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Trujillo Alto PR
 18.36°N 66.02°W (Elev. 138 ft)
Last Update:
3:41 pm AST Oct 4, 2026
Forecast Valid:
4pm AST Oct 4, 2026-6pm AST Oct 11, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation