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

Claudette Impacts the Southeast U.S.; Severe Thunderstorms Sunday; A Heat Wave Persists in West

Heavy rainfall from Claudette may bring additional flash, urban and small stream flooding from Georgia into the Carolinas on Sunday. Scattered severe thunderstorms may occur Sunday across parts of the Midwest into the Great Lakes and Ohio Valley. The dangerous and record-breaking heat and critical fire weather conditions will continue across much of the western U.S. on Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Light Rain

80°F

27°C

Humidity 94%
Wind Speed E 7 mph
Barometer 30.12 in (1019.9 mb)
Dewpoint 78°F (26°C)
Visibility 9.00 mi
Heat Index86°F (30°C)
Last update 19 Jun 11:56 pm AST
Extended Forecast for

San Juan PR

  • Overnight

    Overnight: Showers likely, mainly after 3am. Partly cloudy early, then becoming cloudy, with a low around 76. East southeast wind around 13 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Showers
    Likely

    Low: 76 °F

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 90. Heat index values as high as 102. East wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Showers
    Likely

    High: 90 °F

  • Sunday
    Night

    Sunday Night: Scattered showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and midnight, then scattered showers and thunderstorms after midnight. Mostly cloudy, with a low around 77. East wind around 14 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Showers
    Likely

    Low: 77 °F

  • Monday

    Monday: Scattered showers and thunderstorms before noon, then isolated showers. Partly sunny, with a high near 90. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Scattered
    Showers

    High: 90 °F

  • Monday
    Night

    Monday Night: Scattered showers. Mostly cloudy, with a low around 78. East wind 11 to 14 mph. Chance of precipitation is 40%.

    Scattered
    Showers

    Low: 78 °F

  • Tuesday

    Tuesday: Scattered showers. Mostly sunny, with a high near 89. East wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Scattered
    Showers

    High: 89 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 76. East wind 10 to 13 mph.

    Partly Cloudy

    Low: 76 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. East wind 11 to 13 mph.

    Mostly Sunny

    High: 88 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 76. East wind 8 to 10 mph.

    Partly Cloudy

    Low: 76 °F

Detailed Forecast

Overnight
Showers likely, mainly after 3am. Partly cloudy early, then becoming cloudy, with a low around 76. East southeast wind around 13 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers likely and possibly a thunderstorm before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 90. Heat index values as high as 102. East wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Scattered showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and midnight, then scattered showers and thunderstorms after midnight. Mostly cloudy, with a low around 77. East wind around 14 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Scattered showers and thunderstorms before noon, then isolated showers. Partly sunny, with a high near 90. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Monday Night
Scattered showers. Mostly cloudy, with a low around 78. East wind 11 to 14 mph. Chance of precipitation is 40%.
Tuesday
Scattered showers. Mostly sunny, with a high near 89. East wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 76. East wind 10 to 13 mph.
Wednesday
Mostly sunny, with a high near 88. East wind 11 to 13 mph.
Wednesday Night
Partly cloudy, with a low around 76. East wind 8 to 10 mph.
Thursday
Scattered showers, mainly after noon. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 76.
Friday
Scattered showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 76.
Saturday
Mostly sunny, with a high near 91.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
San Juan PR
 18.41°N 66.08°W (Elev. 16 ft)
Last Update:
9:16 pm AST Jun 19, 2021
Forecast Valid:
12am AST Jun 20, 2021-6pm AST Jun 25, 2021
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation