Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Mostly Cloudy

81°F

27°C

Humidity 89%
Wind Speed E 6 mph
Barometer 30.05 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 16 Jul 1:56 am AST
Extended Forecast for

Luis Muñoz Marín International Airport PR

  • Overnight

    Overnight: Scattered showers, mainly after 3am.  Mostly cloudy, with a low around 78. East wind around 10 mph.  Chance of precipitation is 40%.

    Low: 78 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 86. East wind 13 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.

    High: 86 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Scattered showers before midnight, then scattered showers after 3am.  Clear, then becoming mostly cloudy toward daybreak, with a low around 79. East wind around 11 mph.  Chance of precipitation is 40%.

    Low: 79 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers, mainly between 9am and noon.  Widespread haze before 9am, then widespread haze after noon. Mostly sunny, with a high near 87. East wind 13 to 16 mph.  Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Thursday Night

    Thursday Night: Widespread haze. Clear, with a low around 79. East wind around 10 mph.

    Low: 79 °F

    Haze

  • Friday

    Friday: Isolated showers.  Widespread haze. Mostly sunny, with a high near 85. East northeast wind 9 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    High: 85 °F

    Isolated
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 78. East wind 7 to 10 mph.

    Low: 78 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. East wind 7 to 16 mph, with gusts as high as 21 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78. East southeast wind 8 to 10 mph.

    Low: 78 °F

    Mostly Clear

Detailed Forecast

Overnight
Scattered showers, mainly after 3am. Mostly cloudy, with a low around 78. East wind around 10 mph. Chance of precipitation is 40%.
Wednesday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 86. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
Scattered showers before midnight, then scattered showers after 3am. Clear, then becoming mostly cloudy toward daybreak, with a low around 79. East wind around 11 mph. Chance of precipitation is 40%.
Thursday
Scattered showers, mainly between 9am and noon. Widespread haze before 9am, then widespread haze after noon. Mostly sunny, with a high near 87. East wind 13 to 16 mph. Chance of precipitation is 40%.
Thursday Night
Widespread haze. Clear, with a low around 79. East wind around 10 mph.
Friday
Isolated showers. Widespread haze. Mostly sunny, with a high near 85. East northeast wind 9 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 78. East wind 7 to 10 mph.
Saturday
Mostly sunny, with a high near 86. East wind 7 to 16 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 78. East southeast wind 8 to 10 mph.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 78.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 79.
Tuesday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Luis Muñoz Marín International Airport PR
 18.42°N 66.01°W (Elev. 13 ft)
1:59 am AST Jul 16, 2025
2am AST Jul 16, 2025-6pm AST Jul 22, 2025
 
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Additional Resources

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