National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
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Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Mostly Cloudy

79°F

26°C

Humidity 84%
Wind Speed SE 7 mph
Barometer 29.97 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 4 Oct 4:56 pm AST
Extended Forecast for

Vega Baja PR

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 83. East wind around 11 mph. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Tonight

    Tonight: Scattered showers, mainly after 3am. Partly cloudy, with a low around 73. Southeast wind 3 to 8 mph. Chance of precipitation is 40%.

    Low: 73 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 91. Heat index values as high as 106. Light east southeast wind becoming east northeast 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers, mainly before 9pm. Partly cloudy, with a low around 74. Southeast wind 3 to 8 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers after noon. Mostly sunny, with a high near 93. East northeast wind 6 to 13 mph. Chance of precipitation is 30%.

    High: 93 °F

    Sunny then
    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers. Partly cloudy, with a low around 75. East southeast wind 5 to 8 mph. Chance of precipitation is 10%.

    Low: 75 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 88. East wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%.

    High: 88 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 73. Southeast wind 6 to 10 mph.

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: Scattered showers, mainly after noon. Mostly sunny, with a high near 92. East wind 6 to 15 mph. Chance of precipitation is 40%.

    High: 92 °F

    Mostly Sunny
    then
    Scattered
    Showers

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 83. East wind around 11 mph. Chance of precipitation is 60%.
Tonight
Scattered showers, mainly after 3am. Partly cloudy, with a low around 73. Southeast wind 3 to 8 mph. Chance of precipitation is 40%.
Monday
Scattered showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 91. Heat index values as high as 106. Light east southeast wind becoming east northeast 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Scattered showers, mainly before 9pm. Partly cloudy, with a low around 74. Southeast wind 3 to 8 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers after noon. Mostly sunny, with a high near 93. East northeast wind 6 to 13 mph. Chance of precipitation is 30%.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 75. East southeast wind 5 to 8 mph. Chance of precipitation is 10%.
Wednesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 88. East wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 73. Southeast wind 6 to 10 mph.
Thursday
Scattered showers, mainly after noon. Mostly sunny, with a high near 92. East wind 6 to 15 mph. Chance of precipitation is 40%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 93.
Friday Night
Mostly clear, with a low around 73.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
Clear, with a low around 74.
Sunday
Sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Vega Baja PR
 18.44°N 66.4°W (Elev. 200 ft)
Last Update:
3:41 pm AST Oct 4, 2026
Forecast Valid:
5pm AST Oct 4, 2026-6pm AST Oct 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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