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.

Light Rain

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 73°F (23°C)
Visibility 4.00 mi
Last update 28 Mar 6:15 pm AST
Extended Forecast for

Guanica PR

  • Tonight

    Tonight: Scattered showers, mainly before midnight. Partly cloudy, with a low around 68. East northeast wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 68 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers, with thunderstorms also possible after 3pm. Increasing clouds, with a high near 88. Light east wind becoming south southeast 8 to 13 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Sunday Night

    Sunday Night: Isolated showers before 9pm, then isolated showers after 3am. Mostly clear, with a low around 66. East wind 5 to 8 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Isolated
    Showers

  • Monday

    Monday: Scattered showers and thunderstorms after noon. Increasing clouds, with a high near 89. Light northeast wind becoming east southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 50%.

    High: 89 °F

    Sunny then
    Scattered
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. Northeast wind 5 to 10 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 87. East southeast wind 6 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    High: 87 °F

    Isolated
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69. Northeast wind 3 to 7 mph.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely, mainly after noon. Partly sunny, with a high near 88. East wind 5 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 88 °F

    Mostly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 69. Northeast wind 3 to 7 mph. Chance of precipitation is 50%.

    Low: 69 °F

    Scattered
    Showers

Detailed Forecast

Tonight
Scattered showers, mainly before midnight. Partly cloudy, with a low around 68. East northeast wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday
Scattered showers, with thunderstorms also possible after 3pm. Increasing clouds, with a high near 88. Light east wind becoming south southeast 8 to 13 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Isolated showers before 9pm, then isolated showers after 3am. Mostly clear, with a low around 66. East wind 5 to 8 mph. Chance of precipitation is 20%.
Monday
Scattered showers and thunderstorms after noon. Increasing clouds, with a high near 89. Light northeast wind becoming east southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Monday Night
Mostly clear, with a low around 68. Northeast wind 5 to 10 mph.
Tuesday
Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 87. East southeast wind 6 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Tuesday Night
Partly cloudy, with a low around 69. Northeast wind 3 to 7 mph.
Wednesday
Showers likely, mainly after noon. Partly sunny, with a high near 88. East wind 5 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 69. Northeast wind 3 to 7 mph. Chance of precipitation is 50%.
Thursday
Scattered showers after noon. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Thursday Night
Showers likely. Cloudy, with a low around 69. Chance of precipitation is 70%.
Friday
Scattered showers. Mostly sunny, with a high near 88. Chance of precipitation is 50%.
Friday Night
Partly cloudy, with a low around 69.
Saturday
Sunny, with a high near 88.
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 66.92°W (Elev. 16 ft)
Last Update:
4:40 pm AST Mar 28, 2026
Forecast Valid:
6pm AST Mar 28, 2026-6pm AST Apr 4, 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