On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Hot Weather Over Much of the U.S.

Tuesday may be the first day of September, but it will feel more like July in much of the country. Highs in the low to mid 90s will be common from the central and southern Plains across the southeast and into the mid-Atlantic. Highs over 100 will be common in the desert southwest. The hot weather is expected to continue in many areas through the Labor Day weekend.
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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

83°F

28°C

Humidity 82%
Wind Speed E 7 mph
Barometer 30.04 in (1017.2 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 31 Aug 8:56 pm AST
Extended Forecast for

San Juan PR

  • Tonight

    Tonight: Isolated showers.  Partly cloudy, with a low around 79. East wind 7 to 9 mph.  Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 79 °F

  • Tuesday

    Tuesday: Scattered showers and thunderstorms.  Mostly sunny, with a high near 91. Heat index values as high as 101. East northeast wind 10 to 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    Scattered
    Showers

    High: 91 °F

  • Tuesday
    Night

    Tuesday Night: Scattered showers.  Partly cloudy, with a low around 78. East wind 5 to 9 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Scattered
    Showers

    Low: 78 °F

  • Wednesday

    Wednesday: Scattered showers.  Partly sunny, with a high near 91. Heat index values as high as 101. Southeast wind 8 to 11 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Scattered
    Showers

    High: 91 °F

  • Wednesday
    Night

    Wednesday Night: Isolated showers.  Mostly clear, with a low around 79. South southeast wind 5 to 8 mph.  Chance of precipitation is 10%.

    Isolated
    Showers

    Low: 79 °F

  • Thursday

    Thursday: Isolated showers.  Sunny, with a high near 92. East wind 7 to 10 mph.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 92 °F

  • Thursday
    Night

    Thursday Night: Isolated showers.  Mostly clear, with a low around 77. Southeast wind around 8 mph.  Chance of precipitation is 10%.

    Isolated
    Showers

    Low: 77 °F

  • Friday

    Friday: Isolated showers.  Mostly sunny, with a high near 90. East wind 6 to 9 mph.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 90 °F

  • Friday
    Night

    Friday Night: Scattered showers.  Partly cloudy, with a low around 78. South southeast wind 5 to 9 mph.  Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 78 °F

Detailed Forecast

Tonight
Isolated showers. Partly cloudy, with a low around 79. East wind 7 to 9 mph. Chance of precipitation is 20%.
Tuesday
Scattered showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 101. East northeast wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Scattered showers. Partly cloudy, with a low around 78. East wind 5 to 9 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Scattered showers. Partly sunny, with a high near 91. Heat index values as high as 101. Southeast wind 8 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Isolated showers. Mostly clear, with a low around 79. South southeast wind 5 to 8 mph. Chance of precipitation is 10%.
Thursday
Isolated showers. Sunny, with a high near 92. East wind 7 to 10 mph. Chance of precipitation is 20%.
Thursday Night
Isolated showers. Mostly clear, with a low around 77. Southeast wind around 8 mph. Chance of precipitation is 10%.
Friday
Isolated showers. Mostly sunny, with a high near 90. East wind 6 to 9 mph. Chance of precipitation is 20%.
Friday Night
Scattered showers. Partly cloudy, with a low around 78. South southeast wind 5 to 9 mph. Chance of precipitation is 30%.
Saturday
Scattered showers, mainly before noon. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Saturday Night
Isolated showers. Partly cloudy, with a low around 78. Chance of precipitation is 20%.
Sunday
Isolated showers. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Sunday Night
Isolated showers. Partly cloudy, with a low around 78. Chance of precipitation is 20%.
Labor Day
Isolated showers. Sunny, with a high near 90. Chance of precipitation is 20%.
  Click Map For Forecast
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 56 ft)
1:52 pm AST Aug 31, 2015
10pm AST Aug 31, 2015-6pm AST Sep 7, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database