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

81°F

27°C

Humidity 84%
Wind Speed E 5 mph
Barometer 30.01 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 8 Sep 4:56 am AST
Extended Forecast for

3 Miles WNW Luis Muñoz Marín International Airport PR

Heat Advisory September 8, 10:00am until September 8, 05:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Scattered showers. Partly cloudy, with a low around 80. Southeast wind around 8 mph. Chance of precipitation is 30%.

    Low: 80 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers. Partly sunny, with a high near 89. Heat index values as high as 103. East wind 9 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 89 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers. Mostly cloudy, with a low around 80. East wind 11 to 13 mph. Chance of precipitation is 40%.

    Low: 80 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms. Partly sunny, with a high near 87. East wind 14 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 87 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 80. East wind around 14 mph. Chance of precipitation is 40%.

    Low: 80 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 88. East wind 14 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 88 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Widespread haze. Partly cloudy, with a low around 79. East wind 11 to 13 mph.

    Low: 79 °F

    Haze

  • Friday

    Friday: Widespread haze. Mostly sunny, with a high near 90. East wind 13 to 17 mph, with gusts as high as 22 mph.

    High: 90 °F

    Haze

  • Friday Night

    Friday Night: Widespread haze. Mostly clear, with a low around 80. East wind 10 to 13 mph.

    Low: 80 °F

    Haze

Detailed Forecast

Overnight
Scattered showers. Partly cloudy, with a low around 80. Southeast wind around 8 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers. Partly sunny, with a high near 89. Heat index values as high as 103. East wind 9 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 80. East wind 11 to 13 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers and thunderstorms. Partly sunny, with a high near 87. East wind 14 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 80. East wind around 14 mph. Chance of precipitation is 40%.
Thursday
Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 88. East wind 14 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Thursday Night
Widespread haze. Partly cloudy, with a low around 79. East wind 11 to 13 mph.
Friday
Widespread haze. Mostly sunny, with a high near 90. East wind 13 to 17 mph, with gusts as high as 22 mph.
Friday Night
Widespread haze. Mostly clear, with a low around 80. East wind 10 to 13 mph.
Saturday
Widespread haze. Sunny, with a high near 89.
Saturday Night
Scattered showers. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
Sunday
Scattered showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 80.
Monday
Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Luis Muñoz Marín International Airport PR
 18.45°N 66.04°W (Elev. 7 ft)
Last Update:
4:31 am AST Sep 8, 2026
Forecast Valid:
5am AST Sep 8, 2026-6pm AST Sep 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation