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.

Active weather from Northern Rockies to Upper Midwest

A storm system in the northern U.S. will bring a variety of weather across several states from the Northern Rockies to the Upper Midwest on Saturday. Several inches of early-season snow are forecast in the higher elevations of Idaho and western Montana. Locally-heavy rain will accompany strong thunderstorms in the northern Plains and Upper Midwest.
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Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

30°C

86°F

Humidity 75%
Wind Speed Vrbl 6 km/h
Barometer 29.98 in (1015.1 mb)
Dewpoint 25°C (77°F)
Visibility 16 km
Heat Index36°C (97°F)
Last update 5 Sep 11:56 am AST
Extended Forecast for

San Juan PR

  • This
    Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm.  Partly sunny, with a high near 34. Heat index values as high as 39. Southeast wind 18 to 23 km/h, with gusts as high as 32 km/h.  Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 34 °C

  • Tonight

    Tonight: Isolated showers.  Partly cloudy, with a low around 25. Southeast wind 8 to 11 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 25 °C

  • Sunday

    Sunday: Scattered showers, mainly after noon.  Mostly sunny, with a high near 34. Heat index values as high as 37. East southeast wind around 18 km/h.  Chance of precipitation is 40%. New precipitation amounts between 1 and 2.5 mm possible.

    Scattered
    Showers

    High: 34 °C

  • Sunday
    Night

    Sunday Night: Isolated showers.  Partly cloudy, with a low around 24. East southeast wind 10 to 13 km/h.  Chance of precipitation is 10%.

    Isolated
    Showers

    Low: 24 °C

  • Labor
    Day

    Labor Day: Isolated showers.  Mostly sunny, with a high near 33. East wind 18 to 24 km/h, with gusts as high as 34 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 33 °C

  • Monday
    Night

    Monday Night: Isolated showers.  Partly cloudy, with a low around 26. East wind 13 to 18 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 26 °C

  • Tuesday

    Tuesday: Isolated showers.  Mostly sunny, with a high near 32. East northeast wind 13 to 18 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 32 °C

  • Tuesday
    Night

    Tuesday Night: Isolated showers.  Mostly clear, with a low around 26. East southeast wind around 14 km/h.  Chance of precipitation is 10%.

    Isolated
    Showers

    Low: 26 °C

  • Wednesday

    Wednesday: Isolated showers.  Sunny, with a high near 32. East wind 13 to 18 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 32 °C

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 34. Heat index values as high as 39. Southeast wind 18 to 23 km/h, with gusts as high as 32 km/h. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Tonight
Isolated showers. Partly cloudy, with a low around 25. Southeast wind 8 to 11 km/h. Chance of precipitation is 20%.
Sunday
Scattered showers, mainly after noon. Mostly sunny, with a high near 34. Heat index values as high as 37. East southeast wind around 18 km/h. Chance of precipitation is 40%. New precipitation amounts between 1 and 2.5 mm possible.
Sunday Night
Isolated showers. Partly cloudy, with a low around 24. East southeast wind 10 to 13 km/h. Chance of precipitation is 10%.
Labor Day
Isolated showers. Mostly sunny, with a high near 33. East wind 18 to 24 km/h, with gusts as high as 34 km/h. Chance of precipitation is 20%.
Monday Night
Isolated showers. Partly cloudy, with a low around 26. East wind 13 to 18 km/h. Chance of precipitation is 20%.
Tuesday
Isolated showers. Mostly sunny, with a high near 32. East northeast wind 13 to 18 km/h. Chance of precipitation is 20%.
Tuesday Night
Isolated showers. Mostly clear, with a low around 26. East southeast wind around 14 km/h. Chance of precipitation is 10%.
Wednesday
Isolated showers. Sunny, with a high near 32. East wind 13 to 18 km/h. Chance of precipitation is 20%.
Wednesday Night
Isolated showers. Partly cloudy, with a low around 26. Chance of precipitation is 20%.
Thursday
Isolated showers. Sunny, with a high near 32. Chance of precipitation is 20%.
Thursday Night
Isolated showers. Mostly clear, with a low around 26. Chance of precipitation is 20%.
Friday
Isolated showers. Sunny, with a high near 33. Chance of precipitation is 20%.
  Click Map For Forecast
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 17 m)
5:34 am AST Sep 5, 2015
12pm AST Sep 5, 2015-6pm AST Sep 11, 2015
 
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Additional Resources

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