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

Port Isabel, Port Isabel-Cameron County Airport (KPIL)

Lat: 26.16°NLon: 97.34°WElev: 16ft.

Fair

84°F

29°C

Humidity 74%
Wind Speed SE 10 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 18 Aug 8:53 pm CDT
Extended Forecast for

Port Isabel TX

  • Tonight

    Tonight: Partly cloudy, with a low around 81. South southeast wind 9 to 11 mph.

    Low: 81 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90. Southeast wind 9 to 16 mph.

    High: 90 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 82. South southeast wind 11 to 15 mph.

    Low: 82 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 90. South southeast wind 10 to 17 mph.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 82. Southeast wind 10 to 15 mph.

    Low: 82 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 90. South southeast wind 10 to 16 mph.

    High: 90 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 81. South wind 9 to 14 mph.

    Low: 81 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87. Southeast wind 8 to 16 mph, with gusts as high as 21 mph.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 80. Southeast wind 9 to 14 mph.

    Low: 80 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 81. South southeast wind 9 to 11 mph.
Wednesday
Mostly sunny, with a high near 90. Southeast wind 9 to 16 mph.
Wednesday Night
Partly cloudy, with a low around 82. South southeast wind 11 to 15 mph.
Thursday
Sunny, with a high near 90. South southeast wind 10 to 17 mph.
Thursday Night
Mostly clear, with a low around 82. Southeast wind 10 to 15 mph.
Friday
Mostly sunny, with a high near 90. South southeast wind 10 to 16 mph.
Friday Night
Partly cloudy, with a low around 81. South wind 9 to 14 mph.
Saturday
Mostly sunny, with a high near 87. Southeast wind 8 to 16 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 80. Southeast wind 9 to 14 mph.
Sunday
Sunny, with a high near 87. East southeast wind 8 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 81. Southeast wind 9 to 14 mph.
Monday
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 81.
Tuesday
Sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.08°N 97.21°W
Last Update:
9:00 pm CDT Aug 18, 2026
Forecast Valid:
9pm CDT Aug 18, 2026-6pm CDT Aug 25, 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