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

64°F

18°C

Humidity 81%
Wind Speed NA
Barometer 30.10 in (1019.2 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 2 May 12:53 pm CDT
Extended Forecast for

Port Isabel TX

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 73. Breezy, with a north wind around 23 mph, with gusts as high as 28 mph.

    High: 73 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Breezy, with a northeast wind 10 to 18 mph, with gusts as high as 24 mph.

    Low: 70 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 77. Northeast wind 9 to 13 mph.

    High: 77 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72. South southeast wind around 11 mph.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 80. South southeast wind 10 to 17 mph.

    High: 80 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 75. South southeast wind around 17 mph.

    Low: 75 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 82. Breezy, with a south southeast wind 17 to 22 mph, with gusts as high as 28 mph.

    High: 82 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 77. Breezy, with a south southeast wind around 23 mph, with gusts as high as 28 mph.

    Low: 77 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 86. Breezy, with a south wind 18 to 22 mph.

    High: 86 °F

    Partly Sunny
    and Breezy

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 73. Breezy, with a north wind around 23 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 70. Breezy, with a northeast wind 10 to 18 mph, with gusts as high as 24 mph.
Sunday
Mostly sunny, with a high near 77. Northeast wind 9 to 13 mph.
Sunday Night
Partly cloudy, with a low around 72. South southeast wind around 11 mph.
Monday
Partly sunny, with a high near 80. South southeast wind 10 to 17 mph.
Monday Night
Mostly cloudy, with a low around 75. South southeast wind around 17 mph.
Tuesday
Partly sunny, with a high near 82. Breezy, with a south southeast wind 17 to 22 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 77. Breezy, with a south southeast wind around 23 mph, with gusts as high as 28 mph.
Wednesday
Partly sunny, with a high near 86. Breezy, with a south wind 18 to 22 mph.
Wednesday Night
Partly cloudy, with a low around 76. Southeast wind 9 to 15 mph.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Breezy, with a northeast wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Breezy.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Breezy.
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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:
1:18 pm CDT May 2, 2026
Forecast Valid:
1pm CDT May 2, 2026-6pm CDT May 8, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation