National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Port Isabel, Port Isabel-Cameron County Airport (KPIL)

Lat: 26.16°NLon: 97.34°WElev: 16ft.

A Few Clouds

94°F

34°C

Humidity 51%
Wind Speed SE 13 G 18 mph
Barometer 29.94 in (1013.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 31 Aug 12:53 pm CDT
Extended Forecast for

Port Isabel TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 90. East southeast wind around 11 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 81. East southeast wind 5 to 10 mph.

    Low: 81 °F

    Mostly Clear

  • Labor Day

    Labor Day: A 40 percent chance of showers and thunderstorms, mainly before 3pm. Mostly sunny, with a high near 88. Light and variable wind becoming east northeast 5 to 10 mph in the morning.

    High: 88 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 79. East wind 5 to 9 mph becoming light and variable after midnight.

    Low: 79 °F

    Mostly Clear
    then Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. West wind 6 to 11 mph becoming north northeast in the afternoon. Chance of precipitation is 60%.

    High: 88 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers, with thunderstorms also possible after 4am. Partly cloudy, with a low around 80. Northeast wind 5 to 9 mph becoming south southwest after midnight. Chance of precipitation is 20%.

    Low: 80 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of thunderstorms before 7am. Sunny, with a high near 88. Northwest wind 6 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 10%.

    High: 88 °F

    Slight Chance
    T-storms then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79. East wind 6 to 9 mph becoming south after midnight.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Southwest wind 5 to 10 mph becoming east in the afternoon.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 90. East southeast wind around 11 mph.
Tonight
Mostly clear, with a low around 81. East southeast wind 5 to 10 mph.
Labor Day
A 40 percent chance of showers and thunderstorms, mainly before 3pm. Mostly sunny, with a high near 88. Light and variable wind becoming east northeast 5 to 10 mph in the morning.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 79. East wind 5 to 9 mph becoming light and variable after midnight.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. West wind 6 to 11 mph becoming north northeast in the afternoon. Chance of precipitation is 60%.
Tuesday Night
A slight chance of showers, with thunderstorms also possible after 4am. Partly cloudy, with a low around 80. Northeast wind 5 to 9 mph becoming south southwest after midnight. Chance of precipitation is 20%.
Wednesday
A slight chance of thunderstorms before 7am. Sunny, with a high near 88. Northwest wind 6 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 10%.
Wednesday Night
Mostly clear, with a low around 79. East wind 6 to 9 mph becoming south after midnight.
Thursday
Sunny, with a high near 89. Southwest wind 5 to 10 mph becoming east in the afternoon.
Thursday Night
Partly cloudy, with a low around 80. South southeast wind 7 to 10 mph.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 88. East southeast wind 6 to 13 mph.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 81.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
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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:
1:00 pm CDT Aug 31, 2025
Forecast Valid:
1pm CDT Aug 31, 2025-6pm CDT Sep 6, 2025
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation