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.

Light Rain

86°F

30°C

Humidity 79%
Wind Speed SE 9 mph
Barometer 30.02 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 19 Aug 12:56 pm AST
Extended Forecast for

Las Piedras PR

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 103. East southeast wind around 11 mph. Chance of precipitation is 40%.

    High: 90 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly after midnight. Mostly cloudy, with a low around 78. East southeast wind 6 to 10 mph. Chance of precipitation is 40%.

    Low: 78 °F

    Scattered
    Showers

  • Thursday

    Thursday: Isolated showers before noon, then scattered showers after 3pm. Widespread haze before 3pm. Mostly sunny, with a high near 90. East southeast wind 10 to 14 mph. Chance of precipitation is 30%.

    High: 90 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Isolated showers after midnight. Widespread haze. Mostly clear, with a low around 78. East wind 7 to 9 mph. Chance of precipitation is 10%.

    Low: 78 °F

    Haze then
    Isolated
    Showers

  • Friday

    Friday: Scattered showers after noon. Widespread haze before noon. Mostly sunny, with a high near 90. East wind around 14 mph. Chance of precipitation is 30%.

    High: 90 °F

    Haze then
    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers, mainly before midnight. Partly cloudy, with a low around 77. East northeast wind 7 to 9 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers, mainly after noon. Mostly sunny, with a high near 90. East wind 9 to 14 mph. Chance of precipitation is 40%.

    High: 90 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 77. East wind around 8 mph. Chance of precipitation is 50%.

    Low: 77 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers, mainly before noon. Mostly sunny, with a high near 90. East wind 11 to 13 mph. Chance of precipitation is 40%.

    High: 90 °F

    Scattered
    Showers then
    Mostly Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 103. East southeast wind around 11 mph. Chance of precipitation is 40%.
Tonight
Scattered showers, mainly after midnight. Mostly cloudy, with a low around 78. East southeast wind 6 to 10 mph. Chance of precipitation is 40%.
Thursday
Isolated showers before noon, then scattered showers after 3pm. Widespread haze before 3pm. Mostly sunny, with a high near 90. East southeast wind 10 to 14 mph. Chance of precipitation is 30%.
Thursday Night
Isolated showers after midnight. Widespread haze. Mostly clear, with a low around 78. East wind 7 to 9 mph. Chance of precipitation is 10%.
Friday
Scattered showers after noon. Widespread haze before noon. Mostly sunny, with a high near 90. East wind around 14 mph. Chance of precipitation is 30%.
Friday Night
Scattered showers, mainly before midnight. Partly cloudy, with a low around 77. East northeast wind 7 to 9 mph. Chance of precipitation is 30%.
Saturday
Scattered showers, mainly after noon. Mostly sunny, with a high near 90. East wind 9 to 14 mph. Chance of precipitation is 40%.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 77. East wind around 8 mph. Chance of precipitation is 50%.
Sunday
Scattered showers, mainly before noon. Mostly sunny, with a high near 90. East wind 11 to 13 mph. Chance of precipitation is 40%.
Sunday Night
Scattered showers. Mostly cloudy, with a low around 77. Chance of precipitation is 40%.
Monday
Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Las Piedras PR
 18.17°N 65.87°W (Elev. 312 ft)
Last Update:
7:32 am AST Aug 19, 2026
Forecast Valid:
1pm AST Aug 19, 2026-6pm AST Aug 25, 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