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

Hazardous Weather Conditions

Current conditions at

Ponce, Mercedita Airport (TJPS)

Lat: 18.02°NLon: 66.57°WElev: 26ft.

Fair with Haze

86°F

30°C

Humidity 70%
Wind Speed E 8 mph
Barometer 30.05 in
Dewpoint 75°F (24°C)
Visibility 6.00 mi
Heat Index95°F (35°C)
Last update 10 Aug 7:35 am AST
Extended Forecast for

Guanica PR

Heat Advisory August 10, 10:00am until August 10, 04:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Isolated showers between noon and 3pm. Widespread haze. Sunny, with a high near 94. Heat index values as high as 102. East southeast wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 10%.

    High: 94 °F

    Haze then
    Isolated
    Showers

  • Tonight

    Tonight: Widespread haze. Mostly clear, with a low around 75. East northeast wind 5 to 14 mph, with gusts as high as 24 mph.

    Low: 75 °F

    Haze

  • Tuesday

    Tuesday: Isolated showers after noon. Widespread haze. Mostly sunny, with a high near 91. East southeast wind 5 to 10 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 34 mph. Chance of precipitation is 20%.

    High: 91 °F

    Haze then
    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers before midnight. Widespread haze. Mostly clear, with a low around 76. East wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 10%.

    Low: 76 °F

    Isolated
    Showers then
    Haze

  • Wednesday

    Wednesday: Widespread haze. Sunny, with a high near 93. East southeast wind 14 to 20 mph, with gusts as high as 34 mph.

    High: 93 °F

    Haze

  • Wednesday Night

    Wednesday Night: Widespread haze. Mostly clear, with a low around 74. East wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 74 °F

    Haze

  • Thursday

    Thursday: Widespread haze. Sunny, with a high near 92. East southeast wind 17 to 22 mph, with gusts as high as 38 mph.

    High: 92 °F

    Haze

  • Thursday Night

    Thursday Night: Widespread haze. Mostly clear, with a low around 76. East wind 13 to 16 mph, with gusts as high as 28 mph.

    Low: 76 °F

    Haze

  • Friday

    Friday: Sunny, with a high near 92. East southeast wind 18 to 24 mph, with gusts as high as 43 mph.

    High: 92 °F

    Sunny

Detailed Forecast

Today
Isolated showers between noon and 3pm. Widespread haze. Sunny, with a high near 94. Heat index values as high as 102. East southeast wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 10%.
Tonight
Widespread haze. Mostly clear, with a low around 75. East northeast wind 5 to 14 mph, with gusts as high as 24 mph.
Tuesday
Isolated showers after noon. Widespread haze. Mostly sunny, with a high near 91. East southeast wind 5 to 10 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 34 mph. Chance of precipitation is 20%.
Tuesday Night
Isolated showers before midnight. Widespread haze. Mostly clear, with a low around 76. East wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 10%.
Wednesday
Widespread haze. Sunny, with a high near 93. East southeast wind 14 to 20 mph, with gusts as high as 34 mph.
Wednesday Night
Widespread haze. Mostly clear, with a low around 74. East wind 10 to 14 mph, with gusts as high as 24 mph.
Thursday
Widespread haze. Sunny, with a high near 92. East southeast wind 17 to 22 mph, with gusts as high as 38 mph.
Thursday Night
Widespread haze. Mostly clear, with a low around 76. East wind 13 to 16 mph, with gusts as high as 28 mph.
Friday
Sunny, with a high near 92. East southeast wind 18 to 24 mph, with gusts as high as 43 mph.
Friday Night
Clear, with a low around 76.
Saturday
Sunny, with a high near 92.
Saturday Night
Clear, with a low around 76.
Sunday
Scattered showers. Mostly sunny, with a high near 93. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Guanica PR
 17.97°N 66.92°W (Elev. 16 ft)
Last Update:
3:45 am AST Aug 10, 2026
Forecast Valid:
7am AST Aug 10, 2026-6pm AST Aug 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation