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

Severe Thunderstorms and Heavy Rainfall from the Lower Mississippi Valley to the Mid-Atlantic; Active Pattern Continues in Hawaii

Scattered severe thunderstorms are expected today from the ArkLaTex and Lower Mississippi Valley through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat today from east Texas into New York. A powerful kona storm will continue to impact Hawaii through Saturday, bringing heavy rainfall, strong winds, and severe thunderstorms. Read More >

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

82°F

28°C

Humidity 62%
Wind Speed E 16 mph
Barometer 30.03 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 11 Mar 3:56 pm AST
Extended Forecast for

San Juan PR

  • This Afternoon

    This Afternoon: Scattered showers. Mostly sunny, with a high near 85. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 85 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly before 9pm. Partly cloudy, with a low around 73. East southeast wind 7 to 10 mph. Chance of precipitation is 40%.

    Low: 73 °F

    Scattered
    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Partly sunny, with a high near 85. East wind 6 to 14 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 85 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Scattered showers, mainly between 9pm and midnight. Partly cloudy, with a low around 72. East wind 6 to 9 mph. Chance of precipitation is 50%.

    Low: 72 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Friday

    Friday: Isolated showers. Mostly sunny, with a high near 86. East wind 7 to 16 mph. Chance of precipitation is 20%.

    High: 86 °F

    Isolated
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. East wind 8 to 10 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East northeast wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 86 °F

    Sunny then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. East wind 9 to 11 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East wind 11 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 86 °F

    Sunny then
    Scattered
    Showers

Detailed Forecast

This Afternoon
Scattered showers. Mostly sunny, with a high near 85. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tonight
Scattered showers, mainly before 9pm. Partly cloudy, with a low around 73. East southeast wind 7 to 10 mph. Chance of precipitation is 40%.
Thursday
Showers likely, mainly before noon. Partly sunny, with a high near 85. East wind 6 to 14 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Scattered showers, mainly between 9pm and midnight. Partly cloudy, with a low around 72. East wind 6 to 9 mph. Chance of precipitation is 50%.
Friday
Isolated showers. Mostly sunny, with a high near 86. East wind 7 to 16 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 72. East wind 8 to 10 mph.
Saturday
Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East northeast wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 73. East wind 9 to 11 mph.
Sunday
Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East wind 11 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 73.
Monday
Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Monday Night
Scattered showers. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Tuesday
Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Tuesday Night
Scattered showers. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Wednesday
Scattered showers. Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 56 ft)
Last Update:
3:57 pm AST Mar 11, 2026
Forecast Valid:
4pm AST Mar 11, 2026-6pm AST Mar 18, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation