7-Day Forecast 26.08°N 97.21°W (Text-Only)
NWS Forecast for: Port Isabel TX
Issued by: National Weather Service Brownsville, TX
Last Update: 6:00 pm CDT Jun 19, 2025
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  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 3am.  Mostly cloudy, with a low around 79. Southeast wind 10 to 13 mph.  Chance of precipitation is 60%.

    Low: 79 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 9am, then a chance of showers and thunderstorms after 9am.  Partly sunny, with a high near 85. Southeast wind 10 to 15 mph.  Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday
    Night

    Friday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 79. Southeast wind 11 to 14 mph.

    Low: 79 °F

    Chance
    T-storms


  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 86. Southeast wind 11 to 16 mph, with gusts as high as 21 mph.

    High: 86 °F

    Chance
    T-storms


  • Saturday
    Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am.  Partly cloudy, with a low around 79. Southeast wind 11 to 14 mph.  Chance of precipitation is 20%.

    Low: 79 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 10am.  Mostly sunny, with a high near 86. Southeast wind 10 to 15 mph.  Chance of precipitation is 30%.

    High: 86 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday
    Night

    Sunday Night: A slight chance of showers, with thunderstorms also possible after 1am.  Mostly clear, with a low around 79. Southeast wind 10 to 14 mph.  Chance of precipitation is 20%.

    Low: 79 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms.  Sunny, with a high near 86. Southeast wind 9 to 14 mph.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday
    Night

    Monday Night: A slight chance of showers, with thunderstorms also possible after 1am.  Mostly clear, with a low around 78. Southeast wind 7 to 13 mph.  Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight: Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 79. Southeast wind 10 to 13 mph. Chance of precipitation is 60%.

    Friday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 9am, then a chance of showers and thunderstorms after 9am. Partly sunny, with a high near 85. Southeast wind 10 to 15 mph. Chance of precipitation is 60%.

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 79. Southeast wind 11 to 14 mph.

    Saturday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Southeast wind 11 to 16 mph, with gusts as high as 21 mph.

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 79. Southeast wind 11 to 14 mph. Chance of precipitation is 20%.

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 86. Southeast wind 10 to 15 mph. Chance of precipitation is 30%.

    Sunday Night: A slight chance of showers, with thunderstorms also possible after 1am. Mostly clear, with a low around 79. Southeast wind 10 to 14 mph. Chance of precipitation is 20%.

    Monday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 86. Southeast wind 9 to 14 mph.

    Monday Night: A slight chance of showers, with thunderstorms also possible after 1am. Mostly clear, with a low around 78. Southeast wind 7 to 13 mph. Chance of precipitation is 20%.

    Tuesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. East southeast wind 6 to 13 mph.

    Tuesday Night: A 30 percent chance of showers. Partly cloudy, with a low around 79. Southeast wind 6 to 10 mph.

    Wednesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.

    Wednesday Night: A 30 percent chance of showers. Partly cloudy, with a low around 79.

    Thursday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.



    Port Isabel TX
     26.08°N 97.21°W

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