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.

Overcast

76°F

24°C

Humidity 91%
Wind Speed SE 14 mph
Barometer 29.95 in (1014.2 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 16 Apr 10:53 pm CDT
Extended Forecast for

Port Isabel TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 73. South southeast wind around 13 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 83. Breezy, with a south southeast wind 13 to 22 mph, with gusts as high as 28 mph.

    High: 83 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 74. South southeast wind 14 to 17 mph, with gusts as high as 23 mph.

    Low: 74 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 83. Breezy, with a south southeast wind 14 to 18 mph, with gusts as high as 23 mph.

    High: 83 °F

    Mostly Cloudy
    and Breezy

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 70. East southeast wind 7 to 10 mph becoming north northeast after midnight. Chance of precipitation is 60%.

    Low: 70 °F

    Cloudy then
    Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 76. Breezy, with a north northeast wind 16 to 21 mph. Chance of precipitation is 80%.

    High: 76 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 68. Breezy, with a northeast wind 11 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    Low: 68 °F

    Showers
    Likely and
    Breezy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 78. Breezy, with an east wind 11 to 18 mph.

    High: 78 °F

    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 70. East southeast wind 9 to 15 mph.

    Low: 70 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 73. South southeast wind around 13 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 83. Breezy, with a south southeast wind 13 to 22 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 74. South southeast wind 14 to 17 mph, with gusts as high as 23 mph.
Saturday
Mostly cloudy, with a high near 83. Breezy, with a south southeast wind 14 to 18 mph, with gusts as high as 23 mph.
Saturday Night
Showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 70. East southeast wind 7 to 10 mph becoming north northeast after midnight. Chance of precipitation is 60%.
Sunday
Showers and possibly a thunderstorm. High near 76. Breezy, with a north northeast wind 16 to 21 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 68. Breezy, with a northeast wind 11 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Monday
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 78. Breezy, with an east wind 11 to 18 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 70. East southeast wind 9 to 15 mph.
Tuesday
A 30 percent chance of showers. Mostly cloudy, with a high near 81. East southeast wind 8 to 16 mph.
Tuesday Night
Mostly cloudy, with a low around 72. East southeast wind 8 to 13 mph.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 82. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.06°N 97.21°W
Last Update:
11:00 pm CDT Apr 16, 2026
Forecast Valid:
11pm CDT Apr 16, 2026-6pm CDT Apr 23, 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