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.

Mostly Cloudy

78°F

26°C

Humidity 82%
Wind Speed S 13 mph
Barometer 29.90 in (1012.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Apr 8:53 am CDT
Extended Forecast for

Port Isabel TX

  • Today

    Today: Partly sunny, with a high near 80. Breezy, with a south southeast wind 17 to 22 mph, with gusts as high as 28 mph.

    High: 80 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: 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 80. Breezy, with a south southeast wind 15 to 18 mph, with gusts as high as 23 mph.

    High: 80 °F

    Mostly Cloudy
    and Breezy

  • Saturday Night

    Saturday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 69. East wind 9 to 14 mph becoming north northeast after midnight. Chance of precipitation is 70%.

    Low: 69 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 7am, then showers between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 74. Breezy, with a northeast wind 18 to 22 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    High: 74 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 70. Breezy, with an east northeast wind 14 to 18 mph. Chance of precipitation is 70%.

    Low: 70 °F

    Showers
    Likely and
    Breezy

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 76. East wind 13 to 17 mph. Chance of precipitation is 60%.

    High: 76 °F

    Heavy Rain

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. East wind 11 to 16 mph.

    Low: 72 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 78. Southeast wind 10 to 17 mph.

    High: 78 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 80. Breezy, with a south southeast wind 17 to 22 mph, with gusts as high as 28 mph.
Tonight
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 80. Breezy, with a south southeast wind 15 to 18 mph, with gusts as high as 23 mph.
Saturday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 69. East wind 9 to 14 mph becoming north northeast after midnight. Chance of precipitation is 70%.
Sunday
Showers and possibly a thunderstorm before 7am, then showers between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 74. Breezy, with a northeast wind 18 to 22 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 70. Breezy, with an east northeast wind 14 to 18 mph. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 76. East wind 13 to 17 mph. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. East wind 11 to 16 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 78. Southeast wind 10 to 17 mph.
Tuesday Night
Partly cloudy, with a low around 73. Southeast wind 10 to 14 mph.
Wednesday
Mostly sunny, with a high near 79. Southeast wind 9 to 17 mph.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
Mostly sunny, with a high near 80. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.08°N 97.21°W
Last Update:
8:45 am CDT Apr 17, 2026
Forecast Valid:
9am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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