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Risk of severe thunderstorms from Florida to the Great Lake States

Storms may contain strong, damaging winds and hail. Locally heavy rain is also possible in southern California and the Desert Southwest. Very hot conditions continue in the lower Mississippi Valley and the Deep South.
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Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

28°C

83°F

Humidity 77%
Wind Speed E 11 km/h
Barometer 30.07 in (1018.0 mb)
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index32°C (90°F)
Last update 30 Jul 7:56 am AST
Extended Forecast for

San Juan PR

  • Today

    Today: Isolated showers.  Mostly sunny, with a high near 31. Heat index values as high as 37. East wind 18 to 26 km/h, with gusts as high as 37 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 31 °C

  • Tonight

    Tonight: Isolated showers.  Partly cloudy, with a low around 26. East wind 16 to 21 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 26 °C

  • Friday

    Friday: Isolated showers, then scattered showers and thunderstorms after 3pm.  Mostly sunny, with a high near 32. East wind 18 to 27 km/h, with gusts as high as 39 km/h.  Chance of precipitation is 40%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Scattered
    Showers

    High: 32 °C

  • Friday
    Night

    Friday Night: Scattered showers and thunderstorms before 10pm, then isolated showers.  Partly cloudy, with a low around 26. East wind 16 to 21 km/h.  Chance of precipitation is 40%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Scattered
    Showers

    Low: 26 °C

  • Saturday

    Saturday: Isolated showers.  Sunny, with a high near 32. East wind 18 to 24 km/h, with gusts as high as 34 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 32 °C

  • Saturday
    Night

    Saturday Night: Isolated showers.  Mostly clear, with a low around 26. East wind 14 to 18 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 26 °C

  • Sunday

    Sunday: Isolated showers.  Mostly sunny, with a high near 29. East wind 18 to 21 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 29 °C

  • Sunday
    Night

    Sunday Night: Isolated showers.  Partly cloudy, with a low around 25. East wind 14 to 16 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 25 °C

  • Monday

    Monday: Scattered showers, mainly after 1pm.  Mostly sunny, with a high near 32. East southeast wind 18 to 23 km/h, with gusts as high as 32 km/h.  Chance of precipitation is 30%.

    Scattered
    Showers

    High: 32 °C

Detailed Forecast

Today
Isolated showers. Mostly sunny, with a high near 31. Heat index values as high as 37. East wind 18 to 26 km/h, with gusts as high as 37 km/h. Chance of precipitation is 20%.
Tonight
Isolated showers. Partly cloudy, with a low around 26. East wind 16 to 21 km/h. Chance of precipitation is 20%.
Friday
Isolated showers, then scattered showers and thunderstorms after 3pm. Mostly sunny, with a high near 32. East wind 18 to 27 km/h, with gusts as high as 39 km/h. Chance of precipitation is 40%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Friday Night
Scattered showers and thunderstorms before 10pm, then isolated showers. Partly cloudy, with a low around 26. East wind 16 to 21 km/h. Chance of precipitation is 40%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Saturday
Isolated showers. Sunny, with a high near 32. East wind 18 to 24 km/h, with gusts as high as 34 km/h. Chance of precipitation is 20%.
Saturday Night
Isolated showers. Mostly clear, with a low around 26. East wind 14 to 18 km/h. Chance of precipitation is 20%.
Sunday
Isolated showers. Mostly sunny, with a high near 29. East wind 18 to 21 km/h. Chance of precipitation is 20%.
Sunday Night
Isolated showers. Partly cloudy, with a low around 25. East wind 14 to 16 km/h. Chance of precipitation is 20%.
Monday
Scattered showers, mainly after 1pm. Mostly sunny, with a high near 32. East southeast wind 18 to 23 km/h, with gusts as high as 32 km/h. Chance of precipitation is 30%.
Monday Night
Scattered showers, mainly before 9pm. Partly cloudy, with a low around 25. Chance of precipitation is 30%.
Tuesday
Isolated showers. Mostly sunny, with a high near 31. Chance of precipitation is 10%.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 26. Chance of precipitation is 10%.
Wednesday
Isolated showers. Mostly sunny, with a high near 32. Chance of precipitation is 20%.
  Click Map For Forecast
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 17 m)
4:29 am AST Jul 30, 2015
8am AST Jul 30, 2015-6pm AST Aug 5, 2015
 
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