Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

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 S 3 mph
Barometer 30.00 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 29 Aug 11:56 pm AST
Extended Forecast for

3 Miles WNW Luis Muñoz Marín International Airport PR

  • Overnight

    Overnight: Isolated showers.  Partly cloudy, with a low around 80. East southeast wind around 7 mph.  Chance of precipitation is 20%.

    Low: 80 °F

    Isolated
    Showers

  • Saturday

    Saturday: Scattered showers, mainly before noon.  Mostly sunny, with a high near 90. Heat index values as high as 104. East wind 8 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.

    High: 90 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers after 9pm.  Partly cloudy, with a low around 79. East wind 7 to 10 mph.  Chance of precipitation is 40%.

    Low: 79 °F

    Scattered
    Showers

  • Sunday

    Sunday: Isolated showers.  Mostly sunny, with a high near 91. Heat index values as high as 104. East wind 8 to 14 mph.  Chance of precipitation is 20%.

    High: 91 °F

    Isolated
    Showers

  • Sunday Night

    Sunday Night: Isolated showers.  Partly cloudy, with a low around 79. East wind 6 to 9 mph.  Chance of precipitation is 20%.

    Low: 79 °F

    Isolated
    Showers

  • Labor Day

    Labor Day: Scattered showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 92. East wind 7 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%.

    High: 92 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 79. Southeast wind 6 to 8 mph.

    Low: 79 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Scattered showers.  Partly sunny, with a high near 91. East wind 8 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 40%.

    High: 91 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 79. East southeast wind 6 to 9 mph.

    Low: 79 °F

    Partly Cloudy

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 80. East southeast wind around 7 mph. Chance of precipitation is 20%.
Saturday
Scattered showers, mainly before noon. Mostly sunny, with a high near 90. Heat index values as high as 104. East wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday Night
Scattered showers after 9pm. Partly cloudy, with a low around 79. East wind 7 to 10 mph. Chance of precipitation is 40%.
Sunday
Isolated showers. Mostly sunny, with a high near 91. Heat index values as high as 104. East wind 8 to 14 mph. Chance of precipitation is 20%.
Sunday Night
Isolated showers. Partly cloudy, with a low around 79. East wind 6 to 9 mph. Chance of precipitation is 20%.
Labor Day
Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 92. East wind 7 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 79. Southeast wind 6 to 8 mph.
Tuesday
Scattered showers. Partly sunny, with a high near 91. East wind 8 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 79. East southeast wind 6 to 9 mph.
Wednesday
Scattered showers, mainly before noon. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 79.
Thursday
Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 79.
Friday
Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Luis Muñoz Marín International Airport PR
 18.45°N 66.04°W (Elev. 7 ft)
10:36 am AST Aug 29, 2025
12am AST Aug 30, 2025-6pm AST Sep 5, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database