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

29°C

85°F

Humidity 82%
Wind Speed SE 24 km/h
Barometer 1015.9 mb (30.00 in)
Dewpoint 26°C (79°F)
Visibility 16 km
Heat Index37°C (98°F)
Last update 21 Jun 9:53 am CDT
Extended Forecast for

Port Isabel TX

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 30. Southeast wind 23 to 27 km/h, with gusts as high as 35 km/h.

    High: 30 °C

    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 26. Southeast wind 18 to 23 km/h.

    Low: 26 °C

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 10am. Sunny, with a high near 30. Southeast wind 18 to 24 km/h, with gusts as high as 32 km/h. Chance of precipitation is 20%.

    High: 30 °C

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 26. Southeast wind 14 to 23 km/h. Chance of precipitation is 20%.

    Low: 26 °C

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 31. Southeast wind 14 to 23 km/h.

    High: 31 °C

    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 26. Southeast wind 16 to 21 km/h decreasing to 10 to 15 km/h after midnight. Chance of precipitation is 20%.

    Low: 26 °C

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 30. East southeast wind 10 to 18 km/h.

    High: 30 °C

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 26. Southeast wind 10 to 16 km/h.

    Low: 26 °C

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 30. East southeast wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon.

    High: 30 °C

    Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 30. Southeast wind 23 to 27 km/h, with gusts as high as 35 km/h.
Tonight
Partly cloudy, with a low around 26. Southeast wind 18 to 23 km/h.
Sunday
A slight chance of showers, with thunderstorms also possible after 10am. Sunny, with a high near 30. Southeast wind 18 to 24 km/h, with gusts as high as 32 km/h. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 26. Southeast wind 14 to 23 km/h. Chance of precipitation is 20%.
Monday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 31. Southeast wind 14 to 23 km/h.
Monday Night
A slight chance of thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 26. Southeast wind 16 to 21 km/h decreasing to 10 to 15 km/h after midnight. Chance of precipitation is 20%.
Tuesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 30. East southeast wind 10 to 18 km/h.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 26. Southeast wind 10 to 16 km/h.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 30. East southeast wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 26. Southeast wind 11 to 16 km/h.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 30. East southeast wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 26.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.08°N 97.21°W
Last Update:
9:45 am CDT Jun 21, 2025
Forecast Valid:
10am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
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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