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Current conditions at

Ponce, Mercedita Airport (TJPS)

Lat: 18.02°NLon: 66.57°WElev: 26ft.

Overcast

77°F

25°C

Humidity 83%
Wind Speed NE 5 mph
Barometer 29.99 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 4 Oct 8:35 pm AST
Extended Forecast for

La Alianza PR

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 9pm, then isolated showers. Partly cloudy, with a low around 73. Southeast wind 3 to 6 mph. Chance of precipitation is 60%.

    Low: 73 °F

    Showers
    Likely then
    Isolated
    Showers

  • Monday

    Monday: Isolated showers before noon, then scattered showers and thunderstorms between noon and 3pm, then showers and possibly a thunderstorm after 3pm. High near 90. Heat index values as high as 103. Light east southeast wind becoming east northeast 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 90 °F

    Isolated
    Showers then
    Showers

  • Monday Night

    Monday Night: Scattered showers and thunderstorms before 9pm, then isolated showers. Partly cloudy, with a low around 74. Southeast wind 3 to 6 mph. Chance of precipitation is 50%.

    Low: 74 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after noon. Increasing clouds, with a high near 89. Heat index values as high as 102. East northeast wind 5 to 8 mph. Chance of precipitation is 60%.

    High: 89 °F

    Sunny then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Isolated showers after midnight. Mostly clear, with a low around 75. East southeast wind around 6 mph. Chance of precipitation is 10%.

    Low: 75 °F

    Mostly Clear
    then Isolated
    Showers

  • Wednesday

    Wednesday: Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 86. East wind 6 to 14 mph. Chance of precipitation is 60%.

    High: 86 °F

    Isolated
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 74. Southeast wind 5 to 8 mph.

    Low: 74 °F

    Partly Cloudy

  • Thursday

    Thursday: Showers likely, mainly after noon. Partly sunny, with a high near 89. East northeast wind 5 to 9 mph. Chance of precipitation is 60%.

    High: 89 °F

    Mostly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 74. East southeast wind around 7 mph.

    Low: 74 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before 9pm, then isolated showers. Partly cloudy, with a low around 73. Southeast wind 3 to 6 mph. Chance of precipitation is 60%.
Monday
Isolated showers before noon, then scattered showers and thunderstorms between noon and 3pm, then showers and possibly a thunderstorm after 3pm. High near 90. Heat index values as high as 103. Light east southeast wind becoming east northeast 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Scattered showers and thunderstorms before 9pm, then isolated showers. Partly cloudy, with a low around 74. Southeast wind 3 to 6 mph. Chance of precipitation is 50%.
Tuesday
Showers likely and possibly a thunderstorm after noon. Increasing clouds, with a high near 89. Heat index values as high as 102. East northeast wind 5 to 8 mph. Chance of precipitation is 60%.
Tuesday Night
Isolated showers after midnight. Mostly clear, with a low around 75. East southeast wind around 6 mph. Chance of precipitation is 10%.
Wednesday
Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 86. East wind 6 to 14 mph. Chance of precipitation is 60%.
Wednesday Night
Partly cloudy, with a low around 74. Southeast wind 5 to 8 mph.
Thursday
Showers likely, mainly after noon. Partly sunny, with a high near 89. East northeast wind 5 to 9 mph. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 74. East southeast wind around 7 mph.
Friday
Scattered showers after noon. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Friday Night
Mostly clear, with a low around 73.
Saturday
Scattered showers. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Saturday Night
Clear, with a low around 74.
Sunday
Scattered showers. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
La Alianza PR
 18.39°N 66.59°W (Elev. 669 ft)
Last Update:
7:11 pm AST Oct 4, 2026
Forecast Valid:
8pm AST Oct 4, 2026-6pm AST Oct 11, 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