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Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Fair

81°F

27°C

Humidity 84%
Wind Speed E 6 mph
Barometer 30.00 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 30 Jun 2:56 am AST
Extended Forecast for

2 Miles WNW Guaynabo PR

  • Overnight

    Overnight: Isolated showers. Widespread haze. Mostly clear, with a low around 78. East southeast wind around 6 mph. Chance of precipitation is 10%.

    Low: 78 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Widespread haze. Sunny, with a high near 90. Heat index values as high as 104. East southeast wind 10 to 20 mph.

    High: 90 °F

    Haze

  • Tuesday Night

    Tuesday Night: Isolated showers. Widespread haze. Partly cloudy, with a low around 78. East southeast wind 6 to 9 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Isolated showers. Widespread haze before noon. Mostly sunny, with a high near 90. Heat index values as high as 104. East southeast wind 10 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 90 °F

    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: Isolated showers before midnight. Mostly clear, with a low around 78. East southeast wind around 8 mph. Chance of precipitation is 10%.

    Low: 78 °F

    Isolated
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Isolated showers. Mostly sunny, with a high near 90. East wind 11 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 90 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 78. East wind 7 to 9 mph.

    Low: 78 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 90. East wind 8 to 16 mph, with gusts as high as 21 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 78. East wind 7 to 9 mph.

    Low: 78 °F

    Clear

Detailed Forecast

Overnight
Isolated showers. Widespread haze. Mostly clear, with a low around 78. East southeast wind around 6 mph. Chance of precipitation is 10%.
Tuesday
Widespread haze. Sunny, with a high near 90. Heat index values as high as 104. East southeast wind 10 to 20 mph.
Tuesday Night
Isolated showers. Widespread haze. Partly cloudy, with a low around 78. East southeast wind 6 to 9 mph. Chance of precipitation is 20%.
Wednesday
Isolated showers. Widespread haze before noon. Mostly sunny, with a high near 90. Heat index values as high as 104. East southeast wind 10 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Wednesday Night
Isolated showers before midnight. Mostly clear, with a low around 78. East southeast wind around 8 mph. Chance of precipitation is 10%.
Thursday
Isolated showers. Mostly sunny, with a high near 90. East wind 11 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 78. East wind 7 to 9 mph.
Friday
Sunny, with a high near 90. East wind 8 to 16 mph, with gusts as high as 21 mph.
Friday Night
Clear, with a low around 78. East wind 7 to 9 mph.
Independence Day
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Sunny, with a high near 90.
Sunday Night
Clear, with a low around 79.
Monday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Guaynabo PR
 18.4°N 66.15°W (Elev. 85 ft)
Last Update:
2:12 am AST Jun 30, 2026
Forecast Valid:
3am AST Jun 30, 2026-6pm AST Jul 6, 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