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

84°F

29°C

Humidity 66%
Wind Speed SE 16 mph
Barometer 29.93 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 27 Mar 1:35 pm AST
Extended Forecast for

Santa Isabel PR

  • This Afternoon

    This Afternoon: Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 87. East southeast wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 9pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 71. East northeast wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 71 °F

    Showers
    Likely then
    Mostly Clear

  • Saturday

    Saturday: Scattered showers between 9am and noon, then scattered showers and thunderstorms after noon. Increasing clouds, with a high near 86. East southeast wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 86 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers, mainly before 9pm. Partly cloudy, with a low around 71. Northeast wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Scattered
    Showers

  • Sunday

    Sunday: Isolated showers. Mostly sunny, with a high near 88. East northeast wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 88 °F

    Isolated
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 71. Northeast wind around 11 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Scattered showers, mainly after noon. Mostly sunny, with a high near 87. East wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 87 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers. Partly cloudy, with a low around 71. Northeast wind around 10 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East northeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 30%.

    High: 86 °F

    Mostly Sunny
    then
    Scattered
    Showers

Detailed Forecast

This Afternoon
Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 87. East southeast wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Tonight
Showers likely and possibly a thunderstorm before 9pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 71. East northeast wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Scattered showers between 9am and noon, then scattered showers and thunderstorms after noon. Increasing clouds, with a high near 86. East southeast wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Saturday Night
Scattered showers, mainly before 9pm. Partly cloudy, with a low around 71. Northeast wind 6 to 8 mph. Chance of precipitation is 30%.
Sunday
Isolated showers. Mostly sunny, with a high near 88. East northeast wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 71. Northeast wind around 11 mph, with gusts as high as 20 mph.
Monday
Scattered showers, mainly after noon. Mostly sunny, with a high near 87. East wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Monday Night
Scattered showers. Partly cloudy, with a low around 71. Northeast wind around 10 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East northeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 30%.
Tuesday Night
Scattered showers. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Wednesday
Scattered showers. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Scattered showers. Partly sunny, with a high near 87. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Isabel PR
 17.98°N 66.4°W (Elev. 56 ft)
Last Update:
10:32 am AST Mar 27, 2026
Forecast Valid:
2pm AST Mar 27, 2026-6pm AST Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation