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

Ponce, Mercedita Airport (TJPS)

Lat: 18.02°NLon: 66.57°WElev: 26ft.

Fair

91°F

33°C

Humidity 63%
Wind Speed SE 14 G 21 mph
Barometer 30.00 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 14 Sep 10:35 am AST
Extended Forecast for

Guayama PR

  • Today

    Today: Scattered showers before noon, then isolated showers after 3pm. Sunny, with a high near 89. Heat index values as high as 103. East wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 89 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly after 3am. Partly cloudy, with a low around 79. East wind around 9 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Isolated showers before 9am, then scattered showers after noon. Mostly sunny, with a high near 90. East wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    High: 90 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 78. East northeast wind around 9 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 90. East wind 13 to 15 mph, with gusts as high as 26 mph.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 79. East northeast wind around 9 mph. Chance of precipitation is 40%.

    Low: 79 °F

    Scattered
    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 89. East wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 89 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 79. East wind around 9 mph. Chance of precipitation is 60%.

    Low: 79 °F

    Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 90. East wind around 10 mph.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers before noon, then isolated showers after 3pm. Sunny, with a high near 89. Heat index values as high as 103. East wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tonight
Scattered showers, mainly after 3am. Partly cloudy, with a low around 79. East wind around 9 mph. Chance of precipitation is 30%.
Tuesday
Isolated showers before 9am, then scattered showers after noon. Mostly sunny, with a high near 90. East wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Tuesday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 78. East northeast wind around 9 mph. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 90. East wind 13 to 15 mph, with gusts as high as 26 mph.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 79. East northeast wind around 9 mph. Chance of precipitation is 40%.
Thursday
Showers likely. Mostly cloudy, with a high near 89. East wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 79. East wind around 9 mph. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 90. East wind around 10 mph.
Friday Night
Partly cloudy, with a low around 78.
Saturday
Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Saturday Night
Scattered showers. Partly cloudy, with a low around 78. Chance of precipitation is 30%.
Sunday
Scattered showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Guayama PR
 17.97°N 66.11°W (Elev. 98 ft)
Last Update:
1:57 am AST Sep 14, 2026
Forecast Valid:
11am AST Sep 14, 2026-6pm AST Sep 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation