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Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy and Breezy

86°F

30°C

Humidity 59%
Wind Speed E 21 G 28 mph
Barometer 29.95 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 20 Apr 2:56 pm AST
Extended Forecast for

3 Miles WSW Guaynabo PR

  • This Afternoon

    This Afternoon: Scattered showers. Partly sunny, with a high near 86. East wind around 14 mph. Chance of precipitation is 40%.

    High: 86 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly between midnight and 3am. Partly cloudy, with a low around 71. East southeast wind around 8 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 86. East northeast wind 7 to 11 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 72. East wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers. 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 85. East northeast wind 5 to 9 mph. Chance of precipitation is 30%.

    High: 85 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers. 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

  • Friday

    Friday: Showers likely, mainly after noon. Partly sunny, with a high near 85. Calm wind becoming east northeast 5 to 8 mph in the morning. Chance of precipitation is 60%.

    High: 85 °F

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
Scattered showers. Partly sunny, with a high near 86. East wind around 14 mph. Chance of precipitation is 40%.
Tonight
Scattered showers, mainly between midnight and 3am. Partly cloudy, with a low around 71. East southeast wind around 8 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers, mainly between noon and 3pm. Mostly sunny, with a high near 86. East northeast wind 7 to 11 mph. Chance of precipitation is 30%.
Tuesday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 72. East wind 3 to 6 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers. 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 85. 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 after midnight. 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 8 mph in the morning. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 71.
Saturday
Scattered showers. 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%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Guaynabo PR
 18.37°N 66.16°W (Elev. 98 ft)
Last Update:
1:37 pm AST Apr 20, 2026
Forecast Valid:
3pm AST Apr 20, 2026-6pm AST Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation