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

73°F

23°C

Humidity 90%
Wind Speed E 13 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 10 Apr 12:53 am CDT
Extended Forecast for

Port Isabel TX

  • Overnight

    Overnight: A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 71. Southeast wind 8 to 10 mph. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Partly sunny, with a high near 80. East southeast wind 6 to 14 mph.

    High: 80 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 72. Southeast wind 8 to 11 mph.

    Low: 72 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then a chance of showers after 4pm. Mostly sunny, with a high near 80. East southeast wind 8 to 17 mph. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 72. Southeast wind around 14 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 82. Breezy, with a southeast wind 13 to 20 mph, with gusts as high as 25 mph.

    High: 82 °F

    Mostly Cloudy
    and Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 72. Southeast wind 13 to 15 mph, with gusts as high as 21 mph.

    Low: 72 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82. Breezy, with a southeast wind 13 to 20 mph.

    High: 82 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 73. Southeast wind around 16 mph, with gusts as high as 22 mph.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 71. Southeast wind 8 to 10 mph. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Partly sunny, with a high near 80. East southeast wind 6 to 14 mph.
Friday Night
A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 72. Southeast wind 8 to 11 mph.
Saturday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then a chance of showers after 4pm. Mostly sunny, with a high near 80. East southeast wind 8 to 17 mph. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 72. Southeast wind around 14 mph, with gusts as high as 20 mph.
Sunday
Mostly cloudy, with a high near 82. Breezy, with a southeast wind 13 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 72. Southeast wind 13 to 15 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 82. Breezy, with a southeast wind 13 to 20 mph.
Monday Night
Partly cloudy, with a low around 73. Southeast wind around 16 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 82. Breezy, with a south southeast wind 16 to 22 mph, with gusts as high as 28 mph.
Tuesday Night
Partly cloudy, with a low around 72. Southeast wind 15 to 17 mph, with gusts as high as 22 mph.
Wednesday
Partly sunny, with a high near 82. Breezy.
Wednesday Night
Mostly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 82. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.06°N 97.21°W
Last Update:
1:31 am CDT Apr 10, 2026
Forecast Valid:
1am CDT Apr 10, 2026-6pm CDT Apr 16, 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