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.

Partly Cloudy

88°F

31°C

Humidity 66%
Wind Speed SE 13 G 20 mph
Barometer 29.90 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 14 Oct 3:35 pm AST
Extended Forecast for

Guanica PR

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 91. East southeast wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 9pm, then scattered showers between 9pm and midnight. Cloudy during the early evening, then gradual clearing, with a low around 74. East northeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 74 °F

    Showers
    Likely then
    Mostly Clear

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm, mainly after 3pm. Increasing clouds, with a high near 90. East southeast wind 5 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 90 °F

    Sunny then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Scattered showers before 9pm. Mostly cloudy during the early evening, then becoming clear, with a low around 73. East wind 3 to 5 mph. Chance of precipitation is 40%.

    Low: 73 °F

    Scattered
    Showers then
    Clear

  • Friday

    Friday: Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 92. East southeast wind 5 to 13 mph. Chance of precipitation is 40%.

    High: 92 °F

    Sunny then
    Scattered
    Showers

  • Friday Night

    Friday Night: Isolated showers. Partly cloudy, with a low around 73. East northeast wind around 8 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Isolated
    Showers

  • Saturday

    Saturday: Sunny, with a high near 91. Southeast wind 6 to 14 mph.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74. East northeast wind 6 to 8 mph.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 91. Southeast wind 5 to 13 mph.

    High: 91 °F

    Sunny

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 91. East southeast wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers likely and possibly a thunderstorm before 9pm, then scattered showers between 9pm and midnight. Cloudy during the early evening, then gradual clearing, with a low around 74. East northeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers likely and possibly a thunderstorm, mainly after 3pm. Increasing clouds, with a high near 90. East southeast wind 5 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Scattered showers before 9pm. Mostly cloudy during the early evening, then becoming clear, with a low around 73. East wind 3 to 5 mph. Chance of precipitation is 40%.
Friday
Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 92. East southeast wind 5 to 13 mph. Chance of precipitation is 40%.
Friday Night
Isolated showers. Partly cloudy, with a low around 73. East northeast wind around 8 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 91. Southeast wind 6 to 14 mph.
Saturday Night
Mostly clear, with a low around 74. East northeast wind 6 to 8 mph.
Sunday
Sunny, with a high near 91. Southeast wind 5 to 13 mph.
Sunday Night
Mostly clear, with a low around 75.
Monday
Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Guanica PR
 17.97°N 66.93°W (Elev. 20 ft)
Last Update:
2:53 pm AST Oct 14, 2026
Forecast Valid:
3pm AST Oct 14, 2026-6pm AST Oct 20, 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