The Heat is Expanding; Heavy Rainfall Across the Upper Midwest and Gulf Coast; Snow for the Northern Rockies

A dynamic pattern across the country with accumulating heavy wet snow expected across the northern Rockies late this weekend. Meanwhile, deep tropical moisture is expected to move ashore across the Gulf Coast States with the threat of heavy rainfall. This threat extends into the upper Midwest where flash flooding will be possible. In addition, a heat wave is building from the Plains into Northeast Read More >

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

87°F

31°C

Humidity 67%
Wind Speed Vrbl 3 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 15 Jun 5:56 pm AST
Extended Forecast for

Humacao PR

Excessive Heat Watch June 16, 10:00am until June 16, 06:00pm
Click here for hazard details and duration
Excessive Heat Watch
  • Tonight

    Tonight: Showers likely, mainly after 3am.  Mostly cloudy, with a low around 77. Southeast wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 77 °F

    Showers
    Likely

  • Sunday

    Sunday: Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm.  Partly sunny, with a high near 91. Heat index values as high as 106. Southeast wind 5 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Scattered showers, mainly after midnight.  Mostly cloudy, with a low around 79. Light east southeast wind.  Chance of precipitation is 50%.

    Low: 79 °F

    Scattered
    Showers

  • Monday

    Monday: Isolated showers.  Mostly sunny, with a high near 90. Heat index values as high as 105. Southeast wind 3 to 7 mph.  Chance of precipitation is 20%.

    High: 90 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Scattered showers.  Mostly cloudy, with a low around 79. Calm wind becoming east around 5 mph after midnight.  Chance of precipitation is 40%.

    Low: 79 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers.  Mostly sunny, with a high near 89. East southeast wind 6 to 9 mph.  Chance of precipitation is 30%.

    High: 89 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers.  Partly cloudy, with a low around 79. East southeast wind around 8 mph.  Chance of precipitation is 40%.

    Low: 79 °F

    Scattered
    Showers

  • Juneteenth

    Juneteenth: Scattered showers.  Mostly sunny, with a high near 89. East southeast wind 9 to 11 mph.  Chance of precipitation is 50%.

    High: 89 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers.  Partly cloudy, with a low around 78. East wind 8 to 10 mph.  Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

Detailed Forecast

Tonight
Showers likely, mainly after 3am. Mostly cloudy, with a low around 77. Southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 91. Heat index values as high as 106. Southeast wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Scattered showers, mainly after midnight. Mostly cloudy, with a low around 79. Light east southeast wind. Chance of precipitation is 50%.
Monday
Isolated showers. Mostly sunny, with a high near 90. Heat index values as high as 105. Southeast wind 3 to 7 mph. Chance of precipitation is 20%.
Monday Night
Scattered showers. Mostly cloudy, with a low around 79. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 40%.
Tuesday
Scattered showers. Mostly sunny, with a high near 89. East southeast wind 6 to 9 mph. Chance of precipitation is 30%.
Tuesday Night
Scattered showers. Partly cloudy, with a low around 79. East southeast wind around 8 mph. Chance of precipitation is 40%.
Juneteenth
Scattered showers. Mostly sunny, with a high near 89. East southeast wind 9 to 11 mph. Chance of precipitation is 50%.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 78. East wind 8 to 10 mph. Chance of precipitation is 30%.
Thursday
Scattered showers. Mostly sunny, with a high near 87. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 79.
Friday
Scattered showers. Mostly sunny, with a high near 88. Chance of precipitation is 50%.
Friday Night
Partly cloudy, with a low around 80.
Saturday
Scattered showers. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Humacao PR
 18.16°N 65.83°W (Elev. 305 ft)
4:04 pm AST Jun 15, 2024
6pm AST Jun 15, 2024-6pm AST Jun 22, 2024
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database