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.

Partly Cloudy

86°F

30°C

Humidity 65%
Wind Speed NE 12 G 22 mph
Barometer 30.04 in (1017.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 3 Oct 12:53 pm CDT
Extended Forecast for

Port Isabel TX

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Sunny, with a high near 84. Northeast wind around 14 mph.

    High: 84 °F

    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 4am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 78. East northeast wind 7 to 13 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before noon. Mostly sunny, with a high near 84. Northeast wind 8 to 14 mph.

    High: 84 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers between 7pm and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 77. Northeast wind 5 to 11 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms. Sunny, with a high near 85. Northwest wind 5 to 10 mph becoming east northeast in the afternoon. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 79. East wind 6 to 10 mph becoming south southeast after midnight.

    Low: 79 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then a slight chance of showers after 1pm. Sunny, with a high near 86. South wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 79. East southeast wind 6 to 10 mph.

    Low: 79 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 85. East northeast wind 5 to 14 mph. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Sunny, with a high near 84. Northeast wind around 14 mph.
Tonight
A slight chance of showers and thunderstorms before 4am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 78. East northeast wind 7 to 13 mph. Chance of precipitation is 20%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before noon. Mostly sunny, with a high near 84. Northeast wind 8 to 14 mph.
Saturday Night
A slight chance of showers between 7pm and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 77. Northeast wind 5 to 11 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 85. Northwest wind 5 to 10 mph becoming east northeast in the afternoon. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 79. East wind 6 to 10 mph becoming south southeast after midnight.
Monday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then a slight chance of showers after 1pm. Sunny, with a high near 86. South wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 20%.
Monday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 79. East southeast wind 6 to 10 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 85. East northeast wind 5 to 14 mph. Chance of precipitation is 40%.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 79. East northeast wind 7 to 11 mph.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. Northeast wind 9 to 15 mph.
Wednesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 79.
Thursday
A 50 percent chance of showers. Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.08°N 97.24°W
Last Update:
1:00 pm CDT Oct 3, 2025
Forecast Valid:
1pm CDT Oct 3, 2025-6pm CDT Oct 9, 2025
 
Forecast Discussion
 
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Additional Resources

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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