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.

Mostly Cloudy

81°F

27°C

Humidity 84%
Wind Speed SE 10 mph
Barometer 29.94 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 7 Apr 6:55 pm AST
Extended Forecast for

Santa Isabel PR

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 73. East wind 8 to 10 mph. Chance of precipitation is 50%.

    Low: 73 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms. Partly sunny, with a high near 88. East southeast wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.

    High: 88 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Isolated showers between 9pm and midnight. Partly cloudy, with a low around 72. East wind around 9 mph. Chance of precipitation is 10%.

    Low: 72 °F

    Isolated
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Isolated showers. Mostly sunny, with a high near 88. East southeast wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 10%.

    High: 88 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Clear, with a low around 72. East northeast wind 7 to 9 mph.

    Low: 72 °F

    Clear

  • Friday

    Friday: Scattered showers, mainly after noon. Mostly sunny, with a high near 89. East southeast wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 89 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 72. East northeast wind 6 to 8 mph.

    Low: 72 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 88. East southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. East northeast wind 5 to 8 mph.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 73. East wind 8 to 10 mph. Chance of precipitation is 50%.
Wednesday
Scattered showers and thunderstorms. Partly sunny, with a high near 88. East southeast wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Wednesday Night
Isolated showers between 9pm and midnight. Partly cloudy, with a low around 72. East wind around 9 mph. Chance of precipitation is 10%.
Thursday
Isolated showers. Mostly sunny, with a high near 88. East southeast wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 10%.
Thursday Night
Clear, with a low around 72. East northeast wind 7 to 9 mph.
Friday
Scattered showers, mainly after noon. Mostly sunny, with a high near 89. East southeast wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 72. East northeast wind 6 to 8 mph.
Saturday
Sunny, with a high near 88. East southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 71. East northeast wind 5 to 8 mph.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 71.
Monday
Scattered showers. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 50%.
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:
3:56 pm AST Apr 7, 2026
Forecast Valid:
7pm AST Apr 7, 2026-6pm AST Apr 14, 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