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

82°F

28°C

Humidity 84%
Wind Speed E 6 mph
Barometer 29.99 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 19 Aug 1:56 am AST
Extended Forecast for

4 Miles SE San Lorenzo PR

  • Overnight

    Overnight: Scattered showers. Mostly cloudy, with a low around 75. East wind around 6 mph. Chance of precipitation is 40%.

    Low: 75 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and noon, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 85. Southeast wind 8 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 85 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Scattered showers, mainly after midnight. Mostly cloudy, with a low around 77. East southeast wind 6 to 9 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Thursday

    Thursday: Isolated showers before noon, then isolated showers after 3pm. Widespread haze. Sunny, with a high near 86. East southeast wind 10 to 14 mph. Chance of precipitation is 20%.

    High: 86 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Isolated showers after midnight. Widespread haze. Mostly clear, with a low around 77. East wind around 8 mph. Chance of precipitation is 10%.

    Low: 77 °F

    Haze then
    Isolated
    Showers

  • Friday

    Friday: Scattered showers after noon. Widespread haze before noon. Mostly sunny, with a high near 86. East wind around 14 mph. Chance of precipitation is 30%.

    High: 86 °F

    Haze then
    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers. Partly cloudy, with a low around 76. East northeast wind 6 to 9 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers, mainly after noon. Mostly sunny, with a high near 85. East wind 8 to 13 mph. Chance of precipitation is 40%.

    High: 85 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 75. East wind around 8 mph. Chance of precipitation is 40%.

    Low: 75 °F

    Scattered
    Showers

Detailed Forecast

Overnight
Scattered showers. Mostly cloudy, with a low around 75. East wind around 6 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and noon, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 85. Southeast wind 8 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Scattered showers, mainly after midnight. Mostly cloudy, with a low around 77. East southeast wind 6 to 9 mph. Chance of precipitation is 40%.
Thursday
Isolated showers before noon, then isolated showers after 3pm. Widespread haze. Sunny, with a high near 86. East southeast wind 10 to 14 mph. Chance of precipitation is 20%.
Thursday Night
Isolated showers after midnight. Widespread haze. Mostly clear, with a low around 77. East wind around 8 mph. Chance of precipitation is 10%.
Friday
Scattered showers after noon. Widespread haze before noon. Mostly sunny, with a high near 86. East wind around 14 mph. Chance of precipitation is 30%.
Friday Night
Scattered showers. Partly cloudy, with a low around 76. East northeast wind 6 to 9 mph. Chance of precipitation is 30%.
Saturday
Scattered showers, mainly after noon. Mostly sunny, with a high near 85. East wind 8 to 13 mph. Chance of precipitation is 40%.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 75. East wind around 8 mph. Chance of precipitation is 40%.
Sunday
Scattered showers, mainly before noon. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night
Scattered showers. Partly cloudy, with a low around 76. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 76.
Tuesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE San Lorenzo PR
 18.15°N 65.92°W (Elev. 705 ft)
Last Update:
3:34 am AST Aug 19, 2026
Forecast Valid:
3am AST Aug 19, 2026-6pm AST Aug 25, 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