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Current conditions at

Ponce, Mercedita Airport (TJPS)

Lat: 18.02°NLon: 66.57°WElev: 26ft.

Fair

86°F

30°C

Humidity 66%
Wind Speed SE 17 mph
Barometer 29.92 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 20 Apr 2:55 pm AST
Extended Forecast for

Santa Isabel PR

  • This Afternoon

    This Afternoon: Sunny, with a high near 89. East southeast wind around 15 mph, with gusts as high as 24 mph.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Isolated showers before midnight. Mostly clear, with a low around 71. Northeast wind 6 to 10 mph. Chance of precipitation is 10%.

    Low: 71 °F

    Isolated
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Increasing clouds, with a high near 88. Southeast wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Sunny then
    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers. Partly cloudy, with a low around 70. Calm wind becoming northeast 5 to 7 mph after midnight. Chance of precipitation is 20%.

    Low: 70 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Isolated showers. Mostly sunny, with a high near 88. Northeast wind 6 to 14 mph becoming southeast in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

    High: 88 °F

    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: Isolated showers. Partly cloudy, with a low around 69. North northeast wind 3 to 8 mph. Chance of precipitation is 10%.

    Low: 69 °F

    Isolated
    Showers

  • Thursday

    Thursday: Scattered showers, mainly after noon. Mostly sunny, with a high near 87. Light and variable wind becoming southeast 8 to 13 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

    High: 87 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. Northeast wind 3 to 5 mph.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Scattered showers after noon. Mostly sunny, with a high near 87. Light and variable wind becoming southeast 5 to 10 mph in the morning. Chance of precipitation is 30%.

    High: 87 °F

    Sunny then
    Scattered
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 89. East southeast wind around 15 mph, with gusts as high as 24 mph.
Tonight
Isolated showers before midnight. Mostly clear, with a low around 71. Northeast wind 6 to 10 mph. Chance of precipitation is 10%.
Tuesday
Scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Increasing clouds, with a high near 88. Southeast wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 70. Calm wind becoming northeast 5 to 7 mph after midnight. Chance of precipitation is 20%.
Wednesday
Isolated showers. Mostly sunny, with a high near 88. Northeast wind 6 to 14 mph becoming southeast in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Wednesday Night
Isolated showers. Partly cloudy, with a low around 69. North northeast wind 3 to 8 mph. Chance of precipitation is 10%.
Thursday
Scattered showers, mainly after noon. Mostly sunny, with a high near 87. Light and variable wind becoming southeast 8 to 13 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 40%.
Thursday Night
Mostly clear, with a low around 70. Northeast wind 3 to 5 mph.
Friday
Scattered showers after noon. Mostly sunny, with a high near 87. Light and variable wind becoming southeast 5 to 10 mph in the morning. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 71.
Saturday
Sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 87.
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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:
1:37 pm AST Apr 20, 2026
Forecast Valid:
3pm AST Apr 20, 2026-6pm AST Apr 26, 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