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

82°F

28°C

Humidity 58%
Wind Speed S 9 mph
Barometer 29.84 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 20 Mar 5:56 pm AST
Extended Forecast for

Loiza PR

  • Tonight

    Tonight: Scattered showers, mainly after midnight. Partly cloudy, with a low around 76. South southeast wind 8 to 11 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. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    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. West wind 6 to 9 mph becoming north in the afternoon. 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 and possibly a thunderstorm before noon, then scattered showers and thunderstorms after noon. Mostly cloudy, with a high near 81. Northeast wind 11 to 13 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. Northeast wind 9 to 11 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely. Mostly cloudy, with a low around 74. East northeast wind around 10 mph. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely

Detailed Forecast

Tonight
Scattered showers, mainly after midnight. Partly cloudy, with a low around 76. South southeast wind 8 to 11 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. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 82. West wind 6 to 9 mph becoming north in the afternoon. 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 and possibly a thunderstorm before noon, then scattered showers and thunderstorms after noon. Mostly cloudy, with a high near 81. Northeast wind 11 to 13 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. Northeast wind 9 to 11 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 74. East northeast wind around 10 mph. 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%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 75. Chance of precipitation is 50%.
Friday
Scattered showers. Partly sunny, with a high near 82. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Loiza PR
 18.44°N 65.89°W (Elev. 3 ft)
Last Update:
5:46 pm AST Mar 20, 2026
Forecast Valid:
6pm AST Mar 20, 2026-6pm AST Mar 27, 2026
 
Forecast Discussion
 
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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