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

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Partly Cloudy

95°F

35°C

Humidity 55%
Wind Speed S 14 G 20 mph
Barometer 30.02 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index109°F (43°C)
Last update 15 Jul 2:55 pm CDT
Extended Forecast for

Port Lavaca TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. Heat index values as high as 99. South southeast wind around 16 mph, with gusts as high as 21 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 78. South southeast wind 9 to 15 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. Heat index values as high as 99. South wind 8 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77. South southeast wind 7 to 14 mph, with gusts as high as 18 mph.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 89. Light south wind becoming south southeast 8 to 13 mph in the morning.

    High: 89 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 77. South southeast wind 7 to 11 mph.

    Low: 77 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 92. Light south wind becoming south southeast 8 to 13 mph in the morning. Chance of precipitation is 30%.

    High: 92 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 79. South southeast wind 9 to 13 mph.

    Low: 79 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 93. South southeast wind 8 to 15 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 91. Heat index values as high as 99. South southeast wind around 16 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 78. South southeast wind 9 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 90. Heat index values as high as 99. South wind 8 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 77. South southeast wind 7 to 14 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 89. Light south wind becoming south southeast 8 to 13 mph in the morning.
Thursday Night
Partly cloudy, with a low around 77. South southeast wind 7 to 11 mph.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 92. Light south wind becoming south southeast 8 to 13 mph in the morning. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 79. South southeast wind 9 to 13 mph.
Saturday
Mostly sunny, with a high near 93. South southeast wind 8 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 80.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Partly cloudy, with a low around 80.
Monday
Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.64°W
Last Update:
12:33 pm CDT Jul 15, 2025
Forecast Valid:
3pm CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation