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.

Mostly Cloudy

83°F

28°C

Humidity 77%
Wind Speed SE 9 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 22 Nov 9:53 am CST
Extended Forecast for

Port Isabel TX

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly before 3pm. Mostly sunny, with a high near 82. East southeast wind 9 to 11 mph.

    High: 82 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. East southeast wind around 10 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 82. Southeast wind 10 to 16 mph.

    High: 82 °F

    Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76. Breezy, with a south southeast wind 15 to 21 mph.

    Low: 76 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Mostly sunny, with a high near 83. Breezy, with a south southeast wind 17 to 23 mph, with gusts as high as 28 mph.

    High: 83 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. South southeast wind 11 to 16 mph, with gusts as high as 21 mph.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 83. South wind around 10 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Partly cloudy, with a low around 71. East southeast wind 7 to 10 mph becoming northeast after midnight. Chance of precipitation is 60%.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. Breezy, with a north northeast wind 11 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly before 3pm. Mostly sunny, with a high near 82. East southeast wind 9 to 11 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. East southeast wind around 10 mph. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 82. Southeast wind 10 to 16 mph.
Sunday Night
Partly cloudy, with a low around 76. Breezy, with a south southeast wind 15 to 21 mph.
Monday
Mostly sunny, with a high near 83. Breezy, with a south southeast wind 17 to 23 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 75. South southeast wind 11 to 16 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 83. South wind around 10 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Partly cloudy, with a low around 71. East southeast wind 7 to 10 mph becoming northeast after midnight. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. Breezy, with a north northeast wind 11 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. North northeast wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Thanksgiving Day
A 30 percent chance of showers. Partly sunny, with a high near 73. North northeast wind 13 to 15 mph.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 66.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 75.
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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:
10:18 am CST Nov 22, 2025
Forecast Valid:
10am CST Nov 22, 2025-6pm CST Nov 28, 2025
 
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