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

Ponce, Mercedita Airport (TJPS)

Lat: 18.02°NLon: 66.57°WElev: 26ft.

A Few Clouds

75°F

24°C

Humidity 89%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 16 Apr 5:35 pm AST
Extended Forecast for

Santa Isabel PR

  • This Afternoon

    This Afternoon: Isolated showers. Mostly sunny, with a steady temperature around 83. East southeast wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 83 °F

    Isolated
    Showers

  • Tonight

    Tonight: Scattered showers. Partly cloudy, with a low around 71. East northeast wind around 9 mph. Chance of precipitation is 50%.

    Low: 71 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 88. East southeast wind 8 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Scattered showers, mainly after midnight. Mostly cloudy, with a low around 71. East wind around 8 mph. Chance of precipitation is 40%.

    Low: 71 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers. Mostly sunny, with a high near 87. East wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 70. East northeast wind around 8 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Scattered
    Showers

  • Sunday

    Sunday: Sunny, with a high near 88. East southeast wind 7 to 16 mph, with gusts as high as 28 mph.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Scattered showers. Partly cloudy, with a low around 70. East northeast wind 6 to 9 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers after noon. Mostly sunny, with a high near 87. East southeast wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

    High: 87 °F

    Sunny then
    Scattered
    Showers

Detailed Forecast

This Afternoon
Isolated showers. Mostly sunny, with a steady temperature around 83. East southeast wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tonight
Scattered showers. Partly cloudy, with a low around 71. East northeast wind around 9 mph. Chance of precipitation is 50%.
Friday
Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 88. East southeast wind 8 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Scattered showers, mainly after midnight. Mostly cloudy, with a low around 71. East wind around 8 mph. Chance of precipitation is 40%.
Saturday
Scattered showers. Mostly sunny, with a high near 87. East wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Saturday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 70. East northeast wind around 8 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 88. East southeast wind 7 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Scattered showers. Partly cloudy, with a low around 70. East northeast wind 6 to 9 mph. Chance of precipitation is 30%.
Monday
Scattered showers after noon. Mostly sunny, with a high near 87. East southeast wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Scattered showers. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Santa Isabel PR
 17.98°N 66.4°W (Elev. 56 ft)
Last Update:
3:32 pm AST Apr 16, 2026
Forecast Valid:
5pm AST Apr 16, 2026-6pm AST Apr 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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