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.

Fair

28°C

83°F

Humidity 82%
Wind Speed S 20 km/h
Barometer 1011.1 mb (29.86 in)
Dewpoint 25°C (77°F)
Visibility 16 km
Heat Index33°C (92°F)
Last update 12 Sep 1:53 am CDT
Extended Forecast for

Laguna Vista TX

Heat Advisory September 12, 11:00am until September 12, 06:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 28. South wind 21 to 23 km/h, with gusts as high as 34 km/h.

    Low: 28 °C

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 32. Heat index values as high as 41. Breezy, with a south southeast wind 23 to 28 km/h increasing to 30 to 35 km/h in the afternoon.

    High: 32 °C

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28. Breezy, with a southeast wind 27 to 32 km/h decreasing to 16 to 21 km/h after midnight.

    Low: 28 °C

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms between 8am and 10am. Sunny, with a high near 31. Southeast wind 16 to 21 km/h increasing to 22 to 27 km/h in the afternoon. Chance of precipitation is 20%.

    High: 31 °C

    Slight Chance
    T-storms then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. Southeast wind 13 to 23 km/h.

    Low: 28 °C

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 31. South southeast wind 13 to 18 km/h increasing to 22 to 27 km/h in the afternoon.

    High: 31 °C

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 28. Southeast wind 21 to 26 km/h decreasing to 14 to 19 km/h after midnight.

    Low: 28 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 32. Southeast wind 14 to 19 km/h increasing to 22 to 27 km/h in the afternoon.

    High: 32 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. Southeast wind 19 to 24 km/h decreasing to 8 to 13 km/h after midnight.

    Low: 27 °C

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 28. South wind 21 to 23 km/h, with gusts as high as 34 km/h.
Saturday
Sunny, with a high near 32. Heat index values as high as 41. Breezy, with a south southeast wind 23 to 28 km/h increasing to 30 to 35 km/h in the afternoon.
Saturday Night
Mostly clear, with a low around 28. Breezy, with a southeast wind 27 to 32 km/h decreasing to 16 to 21 km/h after midnight.
Sunday
A slight chance of showers and thunderstorms between 8am and 10am. Sunny, with a high near 31. Southeast wind 16 to 21 km/h increasing to 22 to 27 km/h in the afternoon. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 28. Southeast wind 13 to 23 km/h.
Monday
Sunny, with a high near 31. South southeast wind 13 to 18 km/h increasing to 22 to 27 km/h in the afternoon.
Monday Night
Mostly clear, with a low around 28. Southeast wind 21 to 26 km/h decreasing to 14 to 19 km/h after midnight.
Tuesday
Sunny, with a high near 32. Southeast wind 14 to 19 km/h increasing to 22 to 27 km/h in the afternoon.
Tuesday Night
Mostly clear, with a low around 27. Southeast wind 19 to 24 km/h decreasing to 8 to 13 km/h after midnight.
Wednesday
Sunny, with a high near 34. East wind 5 to 10 km/h increasing to 16 to 21 km/h in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 26. East wind 11 to 16 km/h becoming light after midnight.
Thursday
Showers and thunderstorms likely. Mostly sunny, with a high near 34. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 26.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
Laguna Vista TX
 26.1°N 97.29°W
Last Update:
2:30 am CDT Sep 12, 2026
Forecast Valid:
2am CDT Sep 12, 2026-6pm CDT Sep 18, 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