National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines
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 62%
Wind Speed E 16 mph
Barometer 29.94 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 20 Apr 5:56 pm AST
Extended Forecast for

2 Miles S Guaynabo PR

  • Tonight

    Tonight: Scattered showers, mainly between midnight and 3am. Partly cloudy, with a low around 71. Southeast wind 7 to 10 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly between noon and 3pm. Mostly sunny, with a high near 87. East wind 7 to 11 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 71. East northeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 71 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 85. Northeast wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Isolated showers. Partly cloudy, with a low around 71. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.

    Low: 71 °F

    Isolated
    Showers

  • Thursday

    Thursday: Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East northeast wind 5 to 9 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers. Partly cloudy, with a low around 71. East northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 71 °F

    Scattered
    Showers

  • Friday

    Friday: Showers likely, mainly after noon. Partly sunny, with a high near 85. Calm wind becoming east northeast 5 to 9 mph in the morning. Chance of precipitation is 60%.

    High: 85 °F

    Mostly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71. Southeast wind 3 to 6 mph.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers, mainly between midnight and 3am. Partly cloudy, with a low around 71. Southeast wind 7 to 10 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers, mainly between noon and 3pm. Mostly sunny, with a high near 87. East wind 7 to 11 mph. Chance of precipitation is 30%.
Tuesday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 71. East northeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.
Wednesday
Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 85. Northeast wind 5 to 10 mph. Chance of precipitation is 40%.
Wednesday Night
Isolated showers. Partly cloudy, with a low around 71. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.
Thursday
Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East northeast wind 5 to 9 mph. Chance of precipitation is 30%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 71. East northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Friday
Showers likely, mainly after noon. Partly sunny, with a high near 85. Calm wind becoming east northeast 5 to 9 mph in the morning. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 71. Southeast wind 3 to 6 mph.
Saturday
Scattered showers, mainly after noon. Mostly sunny, with a high near 85. Chance of precipitation is 50%.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Showers likely. Mostly sunny, with a high near 85. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Showers likely. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Guaynabo PR
 18.36°N 66.11°W (Elev. 164 ft)
Last Update:
3:53 pm AST Apr 20, 2026
Forecast Valid:
6pm AST Apr 20, 2026-6pm AST Apr 27, 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