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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

87°F

31°C

Humidity 75%
Wind Speed NE 12 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 5 Oct 1:56 pm AST
Extended Forecast for

Vega Alta PR

Heat Advisory October 5, 02:02pm until October 5, 03:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 5, 02:02pm until October 5, 03:00pm

    NOW until 3:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Showers
    Likely

  • Tonight

    Tonight: Scattered showers before 9pm, then isolated showers after midnight. Partly cloudy, with a low around 76. Southeast wind 5 to 7 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 92. Heat index values as high as 105. East northeast wind 6 to 13 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 92 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers, mainly after midnight. Mostly cloudy, with a low around 77. East southeast wind 5 to 8 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 87. East wind 6 to 13 mph. Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers, mainly before midnight. Partly cloudy, with a low around 75. Southeast wind around 7 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers, mainly after noon. Mostly sunny, with a high near 91. East wind 6 to 15 mph. Chance of precipitation is 40%.

    High: 91 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers. Partly cloudy, with a low around 75. East southeast wind 5 to 8 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    Showers

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Cloudy, with a high near 92. Heat index values as high as 107. East wind around 14 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Scattered showers before 9pm, then isolated showers after midnight. Partly cloudy, with a low around 76. Southeast wind 5 to 7 mph. Chance of precipitation is 40%.
Tuesday
Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 92. Heat index values as high as 105. East northeast wind 6 to 13 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Scattered showers, mainly after midnight. Mostly cloudy, with a low around 77. East southeast wind 5 to 8 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 87. East wind 6 to 13 mph. Chance of precipitation is 40%.
Wednesday Night
Scattered showers, mainly before midnight. Partly cloudy, with a low around 75. Southeast wind around 7 mph. Chance of precipitation is 30%.
Thursday
Scattered showers, mainly after noon. Mostly sunny, with a high near 91. East wind 6 to 15 mph. Chance of precipitation is 40%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 75. East southeast wind 5 to 8 mph. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 91. East northeast wind 7 to 17 mph.
Friday Night
Partly cloudy, with a low around 75.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Vega Alta PR
 18.41°N 66.32°W (Elev. 194 ft)
Last Update:
12:38 pm AST Oct 5, 2026
Forecast Valid:
2pm AST Oct 5, 2026-6pm AST Oct 11, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation