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.

Fair

86°F

30°C

Humidity 67%
Wind Speed E 13 mph
Barometer 29.79 in (1008.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 5 Oct 4:53 pm CDT
Extended Forecast for

Port Isabel TX

  • Tonight

    Tonight: Mostly clear, with a low around 78. East northeast wind 6 to 9 mph becoming south southwest after midnight.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87. South southwest wind 6 to 10 mph becoming east in the afternoon.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 79. Southeast wind 7 to 10 mph.

    Low: 79 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. East wind 6 to 11 mph.

    High: 87 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 80. East wind 8 to 11 mph.

    Low: 80 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 85. Northeast wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    High: 85 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 1am. Partly cloudy, with a low around 79. Northeast wind 10 to 14 mph. Chance of precipitation is 60%.

    Low: 79 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 85. Northeast wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    High: 85 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Mostly clear, with a low around 78. Northeast wind 13 to 15 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 78. East northeast wind 6 to 9 mph becoming south southwest after midnight.
Monday
Sunny, with a high near 87. South southwest wind 6 to 10 mph becoming east in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 79. Southeast wind 7 to 10 mph.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. East wind 6 to 11 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 80. East wind 8 to 11 mph.
Wednesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 85. Northeast wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely, mainly after 1am. Partly cloudy, with a low around 79. Northeast wind 10 to 14 mph. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 85. Northeast wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Thursday Night
A 40 percent chance of showers. Mostly clear, with a low around 78. Northeast wind 13 to 15 mph, with gusts as high as 20 mph.
Friday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 85. Northeast wind 14 to 17 mph.
Friday Night
A 20 percent chance of showers. Mostly clear, with a low around 77. East northeast wind 9 to 14 mph.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Sunny, with a high near 85.
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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:
5:00 pm CDT Oct 5, 2025
Forecast Valid:
5pm CDT Oct 5, 2025-6pm CDT Oct 12, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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