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

74°F

23°C

Humidity 91%
Wind Speed S 10 mph
Barometer 29.88 in (1011.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 15 Apr 4:53 am CDT
Extended Forecast for

Port Isabel TX

  • Today

    Today: Mostly cloudy, with a high near 82. Breezy, with a south southeast wind 14 to 20 mph, with gusts as high as 25 mph.

    High: 82 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 72. South southeast wind 11 to 14 mph.

    Low: 72 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 82. Southeast wind 10 to 17 mph, with gusts as high as 22 mph.

    High: 82 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 73. Southeast wind around 14 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. Breezy, with a south southeast wind 13 to 22 mph.

    High: 83 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 74. Breezy, with a southeast wind 14 to 18 mph, with gusts as high as 23 mph.

    Low: 74 °F

    Mostly Cloudy
    and Breezy
    then 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: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. East southeast wind 10 to 14 mph becoming northeast after midnight. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 76. Breezy, with a northeast wind 18 to 23 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
Mostly cloudy, with a high near 82. Breezy, with a south southeast wind 14 to 20 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 72. South southeast wind 11 to 14 mph.
Thursday
Partly sunny, with a high near 82. Southeast wind 10 to 17 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 73. Southeast wind around 14 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 83. Breezy, with a south southeast wind 13 to 22 mph.
Friday Night
Mostly cloudy, with a low around 74. Breezy, with a southeast wind 14 to 18 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
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. East southeast wind 10 to 14 mph becoming northeast after midnight. Chance of precipitation is 40%.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 76. Breezy, with a northeast wind 18 to 23 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Sunday Night
A chance of showers, with thunderstorms also possible after 1am. Cloudy, with a low around 67. Breezy, with a northeast wind 13 to 20 mph. Chance of precipitation is 40%.
Monday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Breezy, with an east northeast wind 13 to 18 mph.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 69.
Tuesday
Partly sunny, with a high near 80.
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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:
5:30 am CDT Apr 15, 2026
Forecast Valid:
5am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation