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 58%
Wind Speed SE 18 mph
Barometer 30.20 in (1022.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 28 Nov 12:53 pm CST
Extended Forecast for

Port Isabel TX

  • This Afternoon

    This Afternoon: A 20 percent chance of showers between 3pm and 5pm. Mostly cloudy, with a high near 76. Breezy, with an east southeast wind around 21 mph.

    High: 76 °F

    Slight Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 72. Breezy, with a southeast wind 20 to 22 mph, with gusts as high as 28 mph.

    Low: 72 °F

    Mostly Cloudy
    and Breezy

  • Saturday

    Saturday: Partly sunny, with a high near 80. Breezy, with a south southeast wind 21 to 25 mph.

    High: 80 °F

    Partly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 3am. Mostly cloudy, with a low around 73. Breezy, with a south wind 11 to 18 mph. Chance of precipitation is 40%.

    Low: 73 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: Showers and possibly a thunderstorm. Temperature falling to around 67 by 5pm. Breezy, with a light and variable wind becoming north 13 to 18 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 80%.

    High: 73 °F⇓

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely. Cloudy, with a low around 61. North wind 15 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    Low: 61 °F

    Showers
    Likely

  • Monday

    Monday: A 40 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 64. Northwest wind 13 to 15 mph, with gusts as high as 20 mph.

    High: 64 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 64. North northwest wind 11 to 15 mph, with gusts as high as 21 mph.

    Low: 64 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 65. Breezy, with a north wind 13 to 18 mph.

    High: 65 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of showers between 3pm and 5pm. Mostly cloudy, with a high near 76. Breezy, with an east southeast wind around 21 mph.
Tonight
Mostly cloudy, with a low around 72. Breezy, with a southeast wind 20 to 22 mph, with gusts as high as 28 mph.
Saturday
Partly sunny, with a high near 80. Breezy, with a south southeast wind 21 to 25 mph.
Saturday Night
A chance of showers, with thunderstorms also possible after 3am. Mostly cloudy, with a low around 73. Breezy, with a south wind 11 to 18 mph. Chance of precipitation is 40%.
Sunday
Showers and possibly a thunderstorm. Temperature falling to around 67 by 5pm. Breezy, with a light and variable wind becoming north 13 to 18 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely. Cloudy, with a low around 61. North wind 15 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Monday
A 40 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 64. Northwest wind 13 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 64. North northwest wind 11 to 15 mph, with gusts as high as 21 mph.
Tuesday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 65. Breezy, with a north wind 13 to 18 mph.
Tuesday Night
Mostly cloudy, with a low around 65. North northeast wind 7 to 11 mph becoming east southeast after midnight.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 77. South southeast wind 8 to 14 mph.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 71.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 77.
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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:
1:47 pm CST Nov 28, 2025
Forecast Valid:
1pm CST Nov 28, 2025-6pm CST Dec 4, 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