National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

90°F

32°C

Humidity 63%
Wind Speed NE 18 mph
Barometer 30.01 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 17 Aug 1:56 pm AST
Extended Forecast for

2 Miles NNE Catano PR

Heat Advisory until August 17, 05:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 17, 05:00pm

    NOW until 5:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 86 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers between midnight and 3am. Mostly clear, with a low around 82. East wind around 8 mph. Chance of precipitation is 20%.

    Low: 82 °F

    Mostly Clear
    then Isolated
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East northeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 40%.

    High: 86 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers, mainly after 3am. Partly cloudy, with a low around 81. East wind 9 to 11 mph. Chance of precipitation is 30%.

    Low: 81 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly before noon. Mostly sunny, with a high near 85. East southeast wind 8 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 81. East southeast wind 7 to 9 mph. Chance of precipitation is 50%.

    Low: 81 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers, mainly before noon. Mostly sunny, with a high near 86. East wind 10 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 86 °F

    Scattered
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 82. East wind 10 to 13 mph.

    Low: 82 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Isolated showers before 3pm. Sunny, with a high near 86. East northeast wind around 15 mph, with gusts as high as 21 mph. Chance of precipitation is 10%.
Tonight
Isolated showers between midnight and 3am. Mostly clear, with a low around 82. East wind around 8 mph. Chance of precipitation is 20%.
Tuesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East northeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 40%.
Tuesday Night
Scattered showers, mainly after 3am. Partly cloudy, with a low around 81. East wind 9 to 11 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers, mainly before noon. Mostly sunny, with a high near 85. East southeast wind 8 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 81. East southeast wind 7 to 9 mph. Chance of precipitation is 50%.
Thursday
Scattered showers, mainly before noon. Mostly sunny, with a high near 86. East wind 10 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Thursday Night
Mostly clear, with a low around 82. East wind 10 to 13 mph.
Friday
Mostly sunny, with a high near 86. East northeast wind 13 to 17 mph, with gusts as high as 24 mph.
Friday Night
Partly cloudy, with a low around 82.
Saturday
Sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 82.
Sunday
Scattered showers. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Catano PR
 18.47°N 66.1°W (Elev. 0 ft)
Last Update:
1:36 pm AST Aug 17, 2026
Forecast Valid:
2pm AST Aug 17, 2026-6pm AST Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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