National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall in the Southern Plains, Ozarks, and Upper Midwest Thursday

Heavy thunderstorms will continue areas of excessive rainfall and locally considerable flooding over parts of the southern Plains into the mid-Mississippi River Valley through Friday. Heavy to excessive rainfall may bring flash and urban flooding, along with isolated riverine flooding to a part of the Upper Midwest Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

79°F

26°C

Humidity 79%
Wind Speed SE 5 mph
Barometer 30.07 in (1018.2 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 12 Jun 2:56 am AST
Extended Forecast for

San Juan PRSimilar City Names

  • Overnight

    Overnight: Scattered showers. Partly cloudy, with a low around 77. East wind around 11 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers, with thunderstorms also possible after 3pm. Widespread haze between 9am and noon. Mostly sunny, with a high near 89. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 89 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers, mainly before midnight. Widespread haze after midnight. Partly cloudy, with a low around 76. East wind around 10 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

  • Friday

    Friday: Isolated showers. Widespread haze before noon. Mostly sunny, with a high near 89. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 89 °F

    Isolated
    Showers

  • Friday Night

    Friday Night: Isolated showers. Partly cloudy, with a low around 77. East wind 8 to 11 mph. Chance of precipitation is 10%.

    Low: 77 °F

    Isolated
    Showers

  • Saturday

    Saturday: Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 90. East wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    High: 90 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 76. East wind 8 to 10 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers. Partly sunny, with a high near 90. East wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 90 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Showers likely. Mostly cloudy, with a low around 77. East wind around 9 mph. Chance of precipitation is 60%.

    Low: 77 °F

    Showers
    Likely

Detailed Forecast

Overnight
Scattered showers. Partly cloudy, with a low around 77. East wind around 11 mph. Chance of precipitation is 30%.
Thursday
Scattered showers, with thunderstorms also possible after 3pm. Widespread haze between 9am and noon. Mostly sunny, with a high near 89. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Thursday Night
Scattered showers, mainly before midnight. Widespread haze after midnight. Partly cloudy, with a low around 76. East wind around 10 mph. Chance of precipitation is 40%.
Friday
Isolated showers. Widespread haze before noon. Mostly sunny, with a high near 89. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday Night
Isolated showers. Partly cloudy, with a low around 77. East wind 8 to 11 mph. Chance of precipitation is 10%.
Saturday
Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 90. East wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 76. East wind 8 to 10 mph. Chance of precipitation is 40%.
Sunday
Scattered showers. Partly sunny, with a high near 90. East wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 77. East wind around 9 mph. Chance of precipitation is 60%.
Monday
Showers likely, mainly before noon. Mostly cloudy, with a high near 88. Chance of precipitation is 70%.
Monday Night
Showers likely. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.
Tuesday
Showers likely. Mostly cloudy, with a high near 90. Chance of precipitation is 60%.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 77. Chance of precipitation is 50%.
Wednesday
Scattered showers. Mostly cloudy, with a high near 90. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
San Juan PRSimilar City Names
 18.41°N 66.07°W (Elev. 56 ft)
Last Update:
6:28 pm AST Jun 11, 2025
Forecast Valid:
3am AST Jun 12, 2025-6pm AST Jun 18, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation