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

Ponce, Mercedita Airport (TJPS)

Lat: 18.02°NLon: 66.57°WElev: 26ft.

Overcast

84°F

29°C

Humidity 23%
Wind Speed Vrbl 5 mph
Barometer 29.91 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 19 Sep 5:15 pm AST
Extended Forecast for

3 Miles SW Guanica PR

  • This Afternoon

    This Afternoon: Isolated showers. Mostly sunny, with a high near 89. East southeast wind around 9 mph. Chance of precipitation is 10%.

    High: 89 °F

    Isolated
    Showers

  • Tonight

    Tonight: Scattered showers, mainly before midnight. Partly cloudy, with a low around 79. East wind around 8 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers, mainly before 9am. Mostly sunny, with a high near 88. Southeast wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Isolated showers before midnight. Mostly clear, with a low around 79. East wind around 9 mph. Chance of precipitation is 20%.

    Low: 79 °F

    Isolated
    Showers then
    Mostly Clear

  • Monday

    Monday: Isolated showers before 9am, then isolated showers after noon. Mostly sunny, with a high near 88. Southeast wind 13 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 10%.

    High: 88 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Isolated showers after midnight. Mostly clear, with a low around 78. East wind around 9 mph. Chance of precipitation is 10%.

    Low: 78 °F

    Mostly Clear
    then Isolated
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. East wind 11 to 16 mph, with gusts as high as 22 mph.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. East wind 7 to 11 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. East southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers. Mostly sunny, with a high near 89. East southeast wind around 9 mph. Chance of precipitation is 10%.
Tonight
Scattered showers, mainly before midnight. Partly cloudy, with a low around 79. East wind around 8 mph. Chance of precipitation is 30%.
Sunday
Scattered showers, mainly before 9am. Mostly sunny, with a high near 88. Southeast wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday Night
Isolated showers before midnight. Mostly clear, with a low around 79. East wind around 9 mph. Chance of precipitation is 20%.
Monday
Isolated showers before 9am, then isolated showers after noon. Mostly sunny, with a high near 88. Southeast wind 13 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 10%.
Monday Night
Isolated showers after midnight. Mostly clear, with a low around 78. East wind around 9 mph. Chance of precipitation is 10%.
Tuesday
Mostly sunny, with a high near 89. East wind 11 to 16 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 78. East wind 7 to 11 mph.
Wednesday
Mostly sunny, with a high near 89. East southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 78.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
Partly cloudy, with a low around 78.
Friday
Mostly sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 79.
Saturday
Scattered showers. Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Guanica PR
 17.94°N 66.95°W (Elev. 85 ft)
Last Update:
4:29 pm AST Sep 19, 2026
Forecast Valid:
5pm AST Sep 19, 2026-6pm AST Sep 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation