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

Ponce, Mercedita Airport (TJPS)

Lat: 18.02°NLon: 66.57°WElev: 26ft.

A Few Clouds

86°F

30°C

Humidity 62%
Wind Speed SE 18 mph
Barometer 29.94 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 31 Mar 1:55 pm AST
Extended Forecast for

Guanica PR

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 88. East southeast wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Showers

  • Tonight

    Tonight: Scattered showers, mainly before 9pm. Partly cloudy, with a low around 63. East northeast wind around 6 mph. Chance of precipitation is 40%.

    Low: 63 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Wednesday

    Wednesday: Isolated showers, then showers and possibly a thunderstorm after noon. High near 89. Light east wind becoming east southeast 8 to 13 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 89 °F

    Isolated
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers, mainly before 9pm. Partly cloudy, with a low around 67. East northeast wind around 5 mph becoming north in the evening. Chance of precipitation is 30%.

    Low: 67 °F

    Scattered
    Showers

  • Thursday

    Thursday: Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 87. Light east northeast wind becoming east southeast 12 to 17 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 60%.

    High: 87 °F

    Isolated
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms before midnight, then isolated showers. Partly cloudy, with a low around 68. East northeast wind around 6 mph. Chance of precipitation is 50%.

    Low: 68 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Friday

    Friday: Scattered showers after noon. Mostly sunny, with a high near 87. Light east northeast wind becoming east southeast 11 to 16 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 40%.

    High: 87 °F

    Sunny then
    Scattered
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. East wind 6 to 8 mph.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Scattered showers after noon. Mostly sunny, with a high near 88. East southeast wind 8 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    High: 88 °F

    Sunny then
    Scattered
    Showers

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 88. East southeast wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Scattered showers, mainly before 9pm. Partly cloudy, with a low around 63. East northeast wind around 6 mph. Chance of precipitation is 40%.
Wednesday
Isolated showers, then showers and possibly a thunderstorm after noon. High near 89. Light east wind becoming east southeast 8 to 13 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Scattered showers, mainly before 9pm. Partly cloudy, with a low around 67. East northeast wind around 5 mph becoming north in the evening. Chance of precipitation is 30%.
Thursday
Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 87. Light east northeast wind becoming east southeast 12 to 17 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 60%.
Thursday Night
Scattered showers and thunderstorms before midnight, then isolated showers. Partly cloudy, with a low around 68. East northeast wind around 6 mph. Chance of precipitation is 50%.
Friday
Scattered showers after noon. Mostly sunny, with a high near 87. Light east northeast wind becoming east southeast 11 to 16 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 40%.
Friday Night
Mostly clear, with a low around 70. East wind 6 to 8 mph.
Saturday
Scattered showers after noon. Mostly sunny, with a high near 88. East southeast wind 8 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Scattered showers. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 70.
Monday
Scattered showers. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Guanica PR
 17.97°N 66.92°W (Elev. 16 ft)
Last Update:
10:04 am AST Mar 31, 2026
Forecast Valid:
2pm AST Mar 31, 2026-6pm AST Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation