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.

Light Rain Fog/Mist

73°F

23°C

Humidity 90%
Wind Speed Vrbl 3 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 4 Dec 11:53 am CST
Extended Forecast for

Port Isabel TX

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly before 3pm. Cloudy, with a temperature falling to around 65 by 5pm. Breezy, with a west wind 10 to 18 mph becoming north. Winds could gust as high as 24 mph. Chance of precipitation is 60%.

    High: 77 °F⇓

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: A chance of rain and thunderstorms. Cloudy, with a low around 56. Breezy, with a north northwest wind 18 to 22 mph. Chance of precipitation is 50%.

    Low: 56 °F

    Chance Rain
    and Breezy

  • Friday

    Friday: A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 65. North northwest wind 10 to 17 mph.

    High: 65 °F

    Slight Chance
    Rain then
    Cloudy

  • Friday Night

    Friday Night: A chance of rain before midnight, then a chance of showers after midnight. Cloudy, with a low around 64. North northwest wind 7 to 10 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Chance Rain

  • Saturday

    Saturday: Mostly cloudy, with a high near 72. North northwest wind 8 to 11 mph.

    High: 72 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 67. North northeast wind 5 to 7 mph becoming light and variable.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 77. West northwest wind 5 to 13 mph becoming north northeast in the afternoon.

    High: 77 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60. Breezy, with a north wind 13 to 21 mph.

    Low: 60 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 66. Breezy, with a north wind 11 to 18 mph, with gusts as high as 23 mph.

    High: 66 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly before 3pm. Cloudy, with a temperature falling to around 65 by 5pm. Breezy, with a west wind 10 to 18 mph becoming north. Winds could gust as high as 24 mph. Chance of precipitation is 60%.
Tonight
A chance of rain and thunderstorms. Cloudy, with a low around 56. Breezy, with a north northwest wind 18 to 22 mph. Chance of precipitation is 50%.
Friday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 65. North northwest wind 10 to 17 mph.
Friday Night
A chance of rain before midnight, then a chance of showers after midnight. Cloudy, with a low around 64. North northwest wind 7 to 10 mph. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 72. North northwest wind 8 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 67. North northeast wind 5 to 7 mph becoming light and variable.
Sunday
Partly sunny, with a high near 77. West northwest wind 5 to 13 mph becoming north northeast in the afternoon.
Sunday Night
Partly cloudy, with a low around 60. Breezy, with a north wind 13 to 21 mph.
Monday
Mostly sunny, with a high near 66. Breezy, with a north wind 11 to 18 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 60. North northeast wind 6 to 10 mph.
Tuesday
Mostly sunny, with a high near 71. East northeast wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Sunny, with a high near 77.
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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:
12:18 pm CST Dec 4, 2025
Forecast Valid:
12pm CST Dec 4, 2025-6pm CST Dec 10, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation