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.

Mostly Cloudy

29°C

84°F

Humidity 74%
Wind Speed E 11 km/h
Barometer 1018.4 mb (30.08 in)
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index33°C (92°F)
Last update 20 Jul 8:56 am AST
Extended Forecast for

3 Miles NE Comerio PR

Heat Advisory July 20, 11:00am until July 20, 04:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Partly sunny, with a high near 28. East southeast wind 11 to 18 km/h. Chance of precipitation is 50%. New rainfall amounts between 1 and 2 cm possible.

    High: 28 °C

    Scattered
    Showers

  • Tonight

    Tonight: Isolated showers between 9pm and midnight. Mostly clear, with a low around 22. East southeast wind 5 to 8 km/h. Chance of precipitation is 10%.

    Low: 22 °C

    Isolated
    Showers then
    Mostly Clear

  • Monday

    Monday: Scattered showers, mainly after noon. Mostly sunny, with a high near 28. East wind 10 to 18 km/h. Chance of precipitation is 30%.

    High: 28 °C

    Scattered
    Showers

  • Monday Night

    Monday Night: Isolated showers. Partly cloudy, with a low around 22. East wind 3 to 8 km/h. Chance of precipitation is 10%.

    Low: 22 °C

    Isolated
    Showers

  • Tuesday

    Tuesday: Scattered showers after noon. Mostly sunny, with a high near 28. East wind 14 to 18 km/h. Chance of precipitation is 30%.

    High: 28 °C

    Sunny then
    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Clear, with a low around 23. East wind 5 to 8 km/h.

    Low: 23 °C

    Clear

  • Wednesday

    Wednesday: Scattered showers, mainly before noon. Mostly sunny, with a high near 28. East wind 13 to 18 km/h. Chance of precipitation is 30%.

    High: 28 °C

    Scattered
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. East wind 8 to 10 km/h.

    Low: 23 °C

    Partly Cloudy

  • Thursday

    Thursday: Scattered showers. Mostly sunny, with a high near 27. East wind 16 to 21 km/h. Chance of precipitation is 30%.

    High: 27 °C

    Scattered
    Showers

Detailed Forecast

Today
Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Partly sunny, with a high near 28. East southeast wind 11 to 18 km/h. Chance of precipitation is 50%. New rainfall amounts between 1 and 2 cm possible.
Tonight
Isolated showers between 9pm and midnight. Mostly clear, with a low around 22. East southeast wind 5 to 8 km/h. Chance of precipitation is 10%.
Monday
Scattered showers, mainly after noon. Mostly sunny, with a high near 28. East wind 10 to 18 km/h. Chance of precipitation is 30%.
Monday Night
Isolated showers. Partly cloudy, with a low around 22. East wind 3 to 8 km/h. Chance of precipitation is 10%.
Tuesday
Scattered showers after noon. Mostly sunny, with a high near 28. East wind 14 to 18 km/h. Chance of precipitation is 30%.
Tuesday Night
Clear, with a low around 23. East wind 5 to 8 km/h.
Wednesday
Scattered showers, mainly before noon. Mostly sunny, with a high near 28. East wind 13 to 18 km/h. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 23. East wind 8 to 10 km/h.
Thursday
Scattered showers. Mostly sunny, with a high near 27. East wind 16 to 21 km/h. Chance of precipitation is 30%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 23. Chance of precipitation is 50%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 28. Chance of precipitation is 70%.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Scattered showers. Mostly sunny, with a high near 27. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Comerio PR
 18.24°N 66.2°W (Elev. 1650 m)
Last Update:
7:30 am AST Jul 20, 2025
Forecast Valid:
9am AST Jul 20, 2025-6pm AST Jul 26, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation