Isolated Severe Thunderstorms and Flooding Potential in the Central U.S.

Isolated strong to severe thunderstorms are possible across parts of the southern and central Plains through Saturday. Large hail and severe wind gusts are the main threats. Heavy rainfall is forecast from the western Gulf Coast into the Midwest from this weekend into early next week. New and renewed river rises are possible across portions of eastern Texas. 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

78°F

26°C

Humidity 85%
Wind Speed E 6 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 14 May 12:56 am AST
Extended Forecast for

San Juan PR

  • Overnight

    Overnight: Scattered showers, mainly after 3am.  Partly cloudy, with a low around 75. East southeast wind around 9 mph.  Chance of precipitation is 40%.

    Scattered
    Showers

    Low: 75 °F

  • Friday

    Friday: Scattered showers, mainly before 9am.  Mostly sunny, with a high near 89. East wind 10 to 15 mph.  Chance of precipitation is 40%.

    Scattered
    Showers

    High: 89 °F

  • Friday
    Night

    Friday Night: Scattered showers, mainly between 9pm and midnight.  Mostly clear, with a low around 76. East southeast wind around 9 mph.  Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 76 °F

  • Saturday

    Saturday: Isolated showers.  Mostly sunny, with a high near 92. East wind 10 to 13 mph.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 92 °F

  • Saturday
    Night

    Saturday Night: Isolated showers.  Mostly clear, with a low around 75. Southeast wind around 9 mph.  Chance of precipitation is 10%.

    Isolated
    Showers

    Low: 75 °F

  • Sunday

    Sunday: Isolated showers.  Mostly sunny, with a high near 91. East wind 10 to 14 mph.  Chance of precipitation is 10%.

    Isolated
    Showers

    High: 91 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 76. East southeast wind around 9 mph.

    Partly Cloudy

    Low: 76 °F

  • Monday

    Monday: Mostly sunny, with a high near 91. East southeast wind 11 to 14 mph.

    Mostly Sunny

    High: 91 °F

  • Monday
    Night

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

    Partly Cloudy

    Low: 76 °F

Detailed Forecast

Overnight
Scattered showers, mainly after 3am. Partly cloudy, with a low around 75. East southeast wind around 9 mph. Chance of precipitation is 40%.
Friday
Scattered showers, mainly before 9am. Mostly sunny, with a high near 89. East wind 10 to 15 mph. Chance of precipitation is 40%.
Friday Night
Scattered showers, mainly between 9pm and midnight. Mostly clear, with a low around 76. East southeast wind around 9 mph. Chance of precipitation is 30%.
Saturday
Isolated showers. Mostly sunny, with a high near 92. East wind 10 to 13 mph. Chance of precipitation is 20%.
Saturday Night
Isolated showers. Mostly clear, with a low around 75. Southeast wind around 9 mph. Chance of precipitation is 10%.
Sunday
Isolated showers. Mostly sunny, with a high near 91. East wind 10 to 14 mph. Chance of precipitation is 10%.
Sunday Night
Partly cloudy, with a low around 76. East southeast wind around 9 mph.
Monday
Mostly sunny, with a high near 91. East southeast wind 11 to 14 mph.
Monday Night
Partly cloudy, with a low around 76. East southeast wind 8 to 10 mph.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 76.
Wednesday
Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 76.
Thursday
Sunny, with a high near 89.
Click Map For Forecast
Point Forecast:
San Juan PR
 18.41°N 66.08°W (Elev. 16 ft)
9:45 pm AST May 13, 2021
1am AST May 14, 2021-6pm AST May 20, 2021
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database