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.

Fair

88°F

31°C

Humidity 68%
Wind Speed SE 17 mph
Barometer 29.91 in (1012.8 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 28 Aug 6:53 pm CDT
Extended Forecast for

Port Isabel TX

  • Tonight

    Tonight: Mostly clear, with a low around 82. South southeast wind 9 to 14 mph.

    Low: 82 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Southeast wind 8 to 14 mph.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 81. Southeast wind 9 to 13 mph.

    Low: 81 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. Southeast wind 8 to 14 mph.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 82. Southeast wind 8 to 11 mph.

    Low: 82 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89. East southeast wind 7 to 11 mph.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 80. East southeast wind 6 to 10 mph.

    Low: 80 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Labor Day

    Labor Day: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 6 to 11 mph becoming east northeast in the afternoon.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 80. East wind 6 to 10 mph.

    Low: 80 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 82. South southeast wind 9 to 14 mph.
Friday
Sunny, with a high near 89. Southeast wind 8 to 14 mph.
Friday Night
Mostly clear, with a low around 81. Southeast wind 9 to 13 mph.
Saturday
Sunny, with a high near 89. Southeast wind 8 to 14 mph.
Saturday Night
Mostly clear, with a low around 82. Southeast wind 8 to 11 mph.
Sunday
Sunny, with a high near 89. East southeast wind 7 to 11 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 80. East southeast wind 6 to 10 mph.
Labor Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 6 to 11 mph becoming east northeast in the afternoon.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 80. East wind 6 to 10 mph.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. North northwest wind 6 to 11 mph becoming northeast in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80. East northeast wind 6 to 10 mph becoming south southwest after midnight.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 80.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Isabel TX
 26.08°N 97.21°W
Last Update:
7:18 pm CDT Aug 28, 2025
Forecast Valid:
7pm CDT Aug 28, 2025-6pm CDT Sep 4, 2025
 
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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