Dangerous heat and humidity from the central U.S. to East Coast

Hot and very humid conditions will continue to produce heat index values over 100 degrees across a large portion of the central and eastern U.S. Heat Advisories and Excessive Heat Warnings continue for the Plains, Mississippi Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. 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

26°C

79°F

Humidity 85%
Wind Speed Calm
Barometer 1015.5 mb (29.99 in)
Dewpoint 23°C (74°F)
Visibility 16 km
Heat Index28°C (83°F)
Last update 25 Jul 3:56 am AST
Extended Forecast for

San Juan PR

  • Overnight

    Overnight: Scattered showers, mainly before 5am.  Partly cloudy, with a low around 24. East southeast wind around 16 km/h.  Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.

    Scattered
    Showers

    Low: 24 °C

  • Monday

    Monday: Isolated showers.  Sunny, with a high near 31. East northeast wind 21 to 29 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 31 °C

  • Monday
    Night

    Monday Night: Scattered showers, mainly after 9pm.  Partly cloudy, with a low around 26. East wind 14 to 24 km/h.  Chance of precipitation is 50%. New precipitation amounts between 1 and 2.5 mm possible.

    Scattered
    Showers

    Low: 26 °C

  • Tuesday

    Tuesday: Scattered showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 32. Heat index values as high as 37. East wind 21 to 29 km/h.  Chance of precipitation is 50%. New rainfall amounts between 5 and 7.5 mm possible.

    Scattered
    Showers

    High: 32 °C

  • Tuesday
    Night

    Tuesday Night: Scattered showers and thunderstorms.  Partly cloudy, with a low around 26. East wind 18 to 23 km/h.  Chance of precipitation is 40%. New precipitation amounts between 2.5 and 5 mm possible.

    Scattered
    Showers

    Low: 26 °C

  • Wednesday

    Wednesday: Scattered showers, mainly before 1pm.  Sunny, with a high near 33. East wind 18 to 27 km/h.  Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.

    Scattered
    Showers

    High: 33 °C

  • Wednesday
    Night

    Wednesday Night: Scattered showers, mainly after 9pm.  Partly cloudy, with a low around 26. East wind 13 to 23 km/h.  Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 26 °C

  • Thursday

    Thursday: Scattered showers, mainly before 1pm.  Mostly sunny, with a high near 32. East northeast wind 16 to 26 km/h.  Chance of precipitation is 30%.

    Scattered
    Showers

    High: 32 °C

  • Thursday
    Night

    Thursday Night: Isolated showers.  Mostly clear, with a low around 25. East wind 14 to 21 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 25 °C

Detailed Forecast

Overnight
Scattered showers, mainly before 5am. Partly cloudy, with a low around 24. East southeast wind around 16 km/h. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.
Monday
Isolated showers. Sunny, with a high near 31. East northeast wind 21 to 29 km/h. Chance of precipitation is 20%.
Monday Night
Scattered showers, mainly after 9pm. Partly cloudy, with a low around 26. East wind 14 to 24 km/h. Chance of precipitation is 50%. New precipitation amounts between 1 and 2.5 mm possible.
Tuesday
Scattered showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 32. Heat index values as high as 37. East wind 21 to 29 km/h. Chance of precipitation is 50%. New rainfall amounts between 5 and 7.5 mm possible.
Tuesday Night
Scattered showers and thunderstorms. Partly cloudy, with a low around 26. East wind 18 to 23 km/h. Chance of precipitation is 40%. New precipitation amounts between 2.5 and 5 mm possible.
Wednesday
Scattered showers, mainly before 1pm. Sunny, with a high near 33. East wind 18 to 27 km/h. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.
Wednesday Night
Scattered showers, mainly after 9pm. Partly cloudy, with a low around 26. East wind 13 to 23 km/h. Chance of precipitation is 30%.
Thursday
Scattered showers, mainly before 1pm. Mostly sunny, with a high near 32. East northeast wind 16 to 26 km/h. Chance of precipitation is 30%.
Thursday Night
Isolated showers. Mostly clear, with a low around 25. East wind 14 to 21 km/h. Chance of precipitation is 20%.
Friday
Isolated showers. Sunny, with a high near 32. Chance of precipitation is 20%.
Friday Night
Scattered showers. Partly cloudy, with a low around 26. Chance of precipitation is 40%.
Saturday
Scattered showers. Mostly sunny, with a high near 32. Chance of precipitation is 40%.
Saturday Night
Scattered showers. Partly cloudy, with a low around 26. Chance of precipitation is 30%.
Sunday
Scattered showers. Mostly sunny, with a high near 32. Chance of precipitation is 30%.
Click Map For Forecast
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 17 m)
8:32 pm AST Jul 24, 2016
4am AST Jul 25, 2016-6pm AST Jul 31, 2016
 
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