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.

A Few Clouds

79°F

26°C

Humidity 74%
Wind Speed SE 17 mph
Barometer 29.90 in (1012.5 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 15 Apr 6:53 pm CDT
Extended Forecast for

Port Isabel TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 74. Southeast wind around 14 mph.

    Low: 74 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 80. Breezy, with a southeast wind 11 to 18 mph.

    High: 80 °F

    Mostly Cloudy
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 74. Southeast wind around 15 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 80. Breezy, with a south southeast wind 14 to 22 mph, with gusts as high as 28 mph.

    High: 80 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 74. Breezy, with a southeast wind around 18 mph, with gusts as high as 24 mph.

    Low: 74 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 81. Breezy, with a south southeast wind 16 to 18 mph, with gusts as high as 23 mph.

    High: 81 °F

    Mostly Cloudy
    and Breezy

  • Saturday Night

    Saturday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. East southeast wind 9 to 13 mph becoming northeast after midnight. Chance of precipitation is 50%.

    Low: 72 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 75. Breezy, with a northeast wind 17 to 23 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Cloudy, with a low around 70. Breezy, with a northeast wind 14 to 21 mph. Chance of precipitation is 50%.

    Low: 70 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 74. Southeast wind around 14 mph.
Thursday
Partly sunny, with a high near 80. Breezy, with a southeast wind 11 to 18 mph.
Thursday Night
Partly cloudy, with a low around 74. Southeast wind around 15 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 80. Breezy, with a south southeast wind 14 to 22 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 74. Breezy, with a southeast wind around 18 mph, with gusts as high as 24 mph.
Saturday
Mostly cloudy, with a high near 81. Breezy, with a south southeast wind 16 to 18 mph, with gusts as high as 23 mph.
Saturday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. East southeast wind 9 to 13 mph becoming northeast after midnight. Chance of precipitation is 50%.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 75. Breezy, with a northeast wind 17 to 23 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms. Cloudy, with a low around 70. Breezy, with a northeast wind 14 to 21 mph. Chance of precipitation is 50%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Breezy, with an east wind 14 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 71. East southeast wind 10 to 16 mph.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 78.
Tuesday Night
Mostly cloudy, with a low around 72.
Wednesday
Partly sunny, with a high near 79. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.08°N 97.21°W
Last Update:
7:18 pm CDT Apr 15, 2026
Forecast Valid:
7pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026
 
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