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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

89°F

32°C

Humidity 63%
Wind Speed E 24 G 37 mph
Barometer 30.05 in (1017.4 mb)
Dewpoint 75°F (24°C)
Visibility 8.00 mi
Heat Index99°F (37°C)
Last update 15 Aug 12:56 pm AST
Extended Forecast for

3 Miles NNW Bayamon PR

Heat Advisory August 15, 01:16pm until August 15, 05:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 15, 01:16pm until August 15, 05:00pm

    NOW until 5:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 90 °F

    Scattered
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 3am.  Mostly cloudy, with a low around 75. East wind 6 to 9 mph.  Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 75 °F

    Showers
    Likely

  • Sunday

    Sunday: Scattered showers, with thunderstorms also possible after noon.  Mostly sunny, with a high near 89. Heat index values as high as 102. East wind 8 to 14 mph.  Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 89 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Isolated showers.  Mostly clear, with a low around 75. East wind 5 to 7 mph.  Chance of precipitation is 10%.

    Low: 75 °F

    Isolated
    Showers

  • Monday

    Monday: Scattered showers, mainly after noon.  Mostly sunny, with a high near 90. East wind 10 to 13 mph.  Chance of precipitation is 30%.

    High: 90 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Isolated showers.  Partly cloudy, with a low around 75. East wind around 6 mph becoming calm  after midnight.  Chance of precipitation is 20%.

    Low: 75 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90. East northeast wind 6 to 13 mph.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 75. East southeast wind around 6 mph.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Scattered showers, mainly after 3pm. Widespread haze before 3pm. Mostly sunny, with a high near 90. Heat index values as high as 103. East northeast wind around 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 75. East wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Scattered showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 89. Heat index values as high as 102. East wind 8 to 14 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Isolated showers. Mostly clear, with a low around 75. East wind 5 to 7 mph. Chance of precipitation is 10%.
Monday
Scattered showers, mainly after noon. Mostly sunny, with a high near 90. East wind 10 to 13 mph. Chance of precipitation is 30%.
Monday Night
Isolated showers. Partly cloudy, with a low around 75. East wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 90. East northeast wind 6 to 13 mph.
Tuesday Night
Partly cloudy, with a low around 75. East southeast wind around 6 mph.
Wednesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 90. East wind 7 to 14 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 75.
Thursday
Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
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 90. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Bayamon PR
 18.31°N 66.15°W (Elev. 269 ft)
4:06 am AST Aug 15, 2026
1pm AST Aug 15, 2026-6pm AST Aug 21, 2026
 
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Additional Resources

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