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.

A Few Clouds

28°C

83°F

Humidity 79%
Wind Speed S 6 km/h
Barometer 1015.1 mb (29.98 in)
Dewpoint 24°C (76°F)
Visibility 16 km
Heat Index33°C (91°F)
Last update 15 Jun 12:56 am AST
Extended Forecast for

2 Miles SSE Guaynabo PR

Excessive Heat Watch June 15, 10:00am until June 15, 06:00pm
Click here for hazard details and duration
Excessive Heat Watch

  • Overnight

    Overnight: Scattered showers. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 40%.

    Low: 25 °C

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 33. Heat index values as high as 41. South southeast wind 8 to 18 km/h. Chance of precipitation is 40%.

    High: 33 °C

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers, mainly after 3am. Partly cloudy, with a low around 27. South southeast wind 8 to 13 km/h. Chance of precipitation is 40%.

    Low: 27 °C

    Isolated
    Showers then
    Scattered
    Showers

  • Sunday

    Sunday: Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 33. Heat index values as high as 41. South southeast wind 10 to 16 km/h. Chance of precipitation is 50%.

    High: 33 °C

    Isolated
    Showers then
    Scattered
    Showers

  • Sunday Night

    Sunday Night: Isolated showers. Mostly cloudy, with a low around 26. South wind 5 to 13 km/h. Chance of precipitation is 20%.

    Low: 26 °C

    Isolated
    Showers

  • Monday

    Monday: Isolated showers. Mostly sunny, with a high near 32. South wind 5 to 11 km/h becoming northeast in the afternoon. Chance of precipitation is 20%.

    High: 32 °C

    Isolated
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. East northeast wind 5 to 8 km/h becoming south southeast after midnight.

    Low: 26 °C

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31. Light and variable wind becoming east northeast 11 to 16 km/h in the morning.

    High: 31 °C

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 26. East southeast wind 8 to 11 km/h.

    Low: 26 °C

    Partly Cloudy

Detailed Forecast

Overnight
Scattered showers. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 40%.
Saturday
Scattered showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 33. Heat index values as high as 41. South southeast wind 8 to 18 km/h. Chance of precipitation is 40%.
Saturday Night
Scattered showers, mainly after 3am. Partly cloudy, with a low around 27. South southeast wind 8 to 13 km/h. Chance of precipitation is 40%.
Sunday
Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 33. Heat index values as high as 41. South southeast wind 10 to 16 km/h. Chance of precipitation is 50%.
Sunday Night
Isolated showers. Mostly cloudy, with a low around 26. South wind 5 to 13 km/h. Chance of precipitation is 20%.
Monday
Isolated showers. Mostly sunny, with a high near 32. South wind 5 to 11 km/h becoming northeast in the afternoon. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 26. East northeast wind 5 to 8 km/h becoming south southeast after midnight.
Tuesday
Mostly sunny, with a high near 31. Light and variable wind becoming east northeast 11 to 16 km/h in the morning.
Tuesday Night
Partly cloudy, with a low around 26. East southeast wind 8 to 11 km/h.
Juneteenth
Scattered showers, mainly after noon. Mostly sunny, with a high near 31. Chance of precipitation is 40%.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 26. Chance of precipitation is 30%.
Thursday
Scattered showers. Mostly sunny, with a high near 31. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Scattered showers. Partly sunny, with a high near 31. Chance of precipitation is 40%.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Guaynabo PR
 18.37°N 66.1°W (Elev. 131 m)
Last Update:
8:58 pm AST Jun 14, 2024
Forecast Valid:
1am AST Jun 15, 2024-6pm AST Jun 21, 2024
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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