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.

Fair

66°F

19°C

Humidity 88%
Wind Speed S 9 mph
Barometer 30.07 in
Dewpoint 62°F (17°C)
Visibility 9.00 mi
Last update 3 Feb 8:15 pm CST
Extended Forecast for

Port Lavaca TX

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 3am. Increasing clouds, with a low around 51. South wind 6 to 10 mph becoming north after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 66. North wind 10 to 15 mph, with gusts as high as 22 mph.

    High: 66 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 41. North wind 6 to 10 mph.

    Low: 41 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 63. North wind 5 to 7 mph becoming southwest in the afternoon.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 43. South southwest wind around 6 mph.

    Low: 43 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 71. West wind 6 to 10 mph.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 48. South wind around 6 mph becoming calm after midnight.

    Low: 48 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. South southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly before 3am. Increasing clouds, with a low around 51. South wind 6 to 10 mph becoming north after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 66. North wind 10 to 15 mph, with gusts as high as 22 mph.
Wednesday Night
Clear, with a low around 41. North wind 6 to 10 mph.
Thursday
Sunny, with a high near 63. North wind 5 to 7 mph becoming southwest in the afternoon.
Thursday Night
Clear, with a low around 43. South southwest wind around 6 mph.
Friday
Sunny, with a high near 71. West wind 6 to 10 mph.
Friday Night
Clear, with a low around 48. South wind around 6 mph becoming calm after midnight.
Saturday
Sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 54. South southeast wind 5 to 8 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Partly sunny, with a high near 72.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.6°N 96.64°W
Last Update:
7:02 pm CST Feb 3, 2026
Forecast Valid:
8pm CST Feb 3, 2026-6pm CST Feb 10, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation