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

78°F

26°C

Humidity 93%
Wind Speed S 12 mph
Barometer 29.69 in (1005.4 mb)
Dewpoint 76°F (24°C)
Visibility 8.00 mi
Heat Index81°F (27°C)
Last update 6 May 4:53 am CDT
Extended Forecast for

Port Isabel TX

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 84. South southeast wind 11 to 17 mph, with gusts as high as 22 mph.

    High: 84 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 78. Southeast wind 6 to 15 mph.

    Low: 78 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A slight chance of showers before 2pm, then a slight chance of showers after 5pm. Partly sunny, with a high near 81. East wind 6 to 14 mph. Chance of precipitation is 20%.

    High: 81 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 78. Northeast wind 5 to 13 mph.

    Low: 78 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 80. Northeast wind 5 to 15 mph becoming east southeast in the afternoon.

    High: 80 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 78. East wind 5 to 10 mph.

    Low: 78 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 81. East southeast wind 5 to 14 mph.

    High: 81 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 78. East southeast wind 5 to 11 mph.

    Low: 78 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 83. East southeast wind 5 to 14 mph.

    High: 83 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 84. South southeast wind 11 to 17 mph, with gusts as high as 22 mph.
Tonight
Increasing clouds, with a low around 78. Southeast wind 6 to 15 mph.
Thursday
A slight chance of showers before 2pm, then a slight chance of showers after 5pm. Partly sunny, with a high near 81. East wind 6 to 14 mph. Chance of precipitation is 20%.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 78. Northeast wind 5 to 13 mph.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 80. Northeast wind 5 to 15 mph becoming east southeast in the afternoon.
Friday Night
Mostly cloudy, with a low around 78. East wind 5 to 10 mph.
Saturday
Mostly cloudy, with a high near 81. East southeast wind 5 to 14 mph.
Saturday Night
Mostly cloudy, with a low around 78. East southeast wind 5 to 11 mph.
Sunday
Partly sunny, with a high near 83. East southeast wind 5 to 14 mph.
Sunday Night
Mostly cloudy, with a low around 78. East southeast wind 6 to 11 mph.
Monday
Mostly cloudy, with a high near 80. North northeast wind 7 to 16 mph.
Monday Night
Mostly cloudy, with a low around 76.
Tuesday
Mostly cloudy, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.08°N 97.24°W
Last Update:
5:40 am CDT May 6, 2026
Forecast Valid:
5am CDT May 6, 2026-6pm CDT May 12, 2026
 
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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