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

57°F

14°C

Humidity 78%
Wind Speed NW 8 mph
Barometer 30.07 in (1018.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 2 Dec 10:53 pm CST
Extended Forecast for

Port Isabel TX

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 62. Light west northwest wind.

    Low: 62 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm. Mostly cloudy, with a high near 77. Light south southeast wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 20%.

    High: 77 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms between 3am and 4am. Mostly cloudy, with a low around 72. South wind around 10 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 78. South wind 8 to 16 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 70%.

    High: 78 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 60. Breezy, with a north wind 16 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    Low: 60 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A 30 percent chance of showers, mainly before noon. Cloudy, with a high near 63. North northwest wind 11 to 15 mph, with gusts as high as 20 mph.

    High: 63 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers. Cloudy, with a low around 63. North wind 7 to 10 mph.

    Low: 63 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 74. North northwest wind 8 to 13 mph.

    High: 74 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 66. North northeast wind 6 to 9 mph becoming northwest after midnight.

    Low: 66 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a steady temperature around 62. Light west northwest wind.
Wednesday
A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm. Mostly cloudy, with a high near 77. Light south southeast wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms between 3am and 4am. Mostly cloudy, with a low around 72. South wind around 10 mph. Chance of precipitation is 20%.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 78. South wind 8 to 16 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 60. Breezy, with a north wind 16 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Friday
A 30 percent chance of showers, mainly before noon. Cloudy, with a high near 63. North northwest wind 11 to 15 mph, with gusts as high as 20 mph.
Friday Night
A 40 percent chance of showers. Cloudy, with a low around 63. North wind 7 to 10 mph.
Saturday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 74. North northwest wind 8 to 13 mph.
Saturday Night
Mostly cloudy, with a low around 66. North northeast wind 6 to 9 mph becoming northwest after midnight.
Sunday
Mostly sunny, with a high near 75. North northeast wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 66. North northeast wind 8 to 10 mph.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.08°N 97.21°W
Last Update:
11:45 pm CST Dec 2, 2025
Forecast Valid:
11pm CST Dec 2, 2025-6pm CST Dec 9, 2025
 
Forecast Discussion
 
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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