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

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

84°F

29°C

Humidity 51%
Wind Speed SE 12 G 24 mph
Barometer 29.91 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 20 Mar 11:56 am AST
Extended Forecast for

Loiza PR

  • This Afternoon

    This Afternoon: Scattered showers, mainly before 3pm. Mostly sunny, with a high near 85. Southeast wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 85 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly after midnight. Partly cloudy, with a low around 76. South southeast wind 7 to 9 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

  • Saturday

    Saturday: Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 85. South southeast wind 8 to 14 mph. Chance of precipitation is 60%. New rainfall amounts between 1 and 2 inches possible.

    High: 85 °F

    Isolated
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 75. Light south southwest wind. Chance of precipitation is 40%.

    Low: 75 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 82. Light and variable wind becoming north northeast 5 to 10 mph in the morning. Chance of precipitation is 70%.

    High: 82 °F

    Scattered
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 75. Northeast wind around 10 mph. Chance of precipitation is 80%.

    Low: 75 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before noon. Mostly cloudy, with a high near 81. Northeast wind around 11 mph. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely. Mostly cloudy, with a low around 76. Northeast wind around 10 mph. Chance of precipitation is 60%.

    Low: 76 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, mainly before noon. Mostly cloudy, with a high near 82. East northeast wind around 10 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Scattered showers, mainly before 3pm. Mostly sunny, with a high near 85. Southeast wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Tonight
Scattered showers, mainly after midnight. Partly cloudy, with a low around 76. South southeast wind 7 to 9 mph. Chance of precipitation is 40%.
Saturday
Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 85. South southeast wind 8 to 14 mph. Chance of precipitation is 60%. New rainfall amounts between 1 and 2 inches possible.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 75. Light south southwest wind. Chance of precipitation is 40%.
Sunday
Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 82. Light and variable wind becoming north northeast 5 to 10 mph in the morning. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 75. Northeast wind around 10 mph. Chance of precipitation is 80%.
Monday
Showers likely, mainly before noon. Mostly cloudy, with a high near 81. Northeast wind around 11 mph. Chance of precipitation is 60%.
Monday Night
Showers likely. Mostly cloudy, with a low around 76. Northeast wind around 10 mph. Chance of precipitation is 60%.
Tuesday
Showers likely, mainly before noon. Mostly cloudy, with a high near 82. East northeast wind around 10 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Wednesday
Scattered showers. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 76. Chance of precipitation is 40%.
Thursday
Scattered showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Loiza PR
 18.44°N 65.89°W (Elev. 3 ft)
Last Update:
2:07 am AST Mar 20, 2026
Forecast Valid:
12pm AST Mar 20, 2026-6pm AST Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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