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.

Mostly Cloudy

81°F

27°C

Humidity 90%
Wind Speed S 6 mph
Barometer 29.99 in
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 16 Jul 12:15 am CDT
Extended Forecast for

Port Lavaca TX

  • Overnight

    Overnight: Partly cloudy, with a low around 78. South wind around 10 mph.

    Low: 78 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 93. Heat index values as high as 106. South wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77. South southeast wind 6 to 14 mph, with gusts as high as 18 mph.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 93. Heat index values as high as 103. Light south southwest wind becoming south southeast 6 to 11 mph in the morning.

    High: 93 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 92. Light south southwest wind becoming south southeast 6 to 11 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 7 to 10 mph.

    Low: 79 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 92. South wind 7 to 14 mph, with gusts as high as 20 mph.

    High: 92 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 80. South southeast wind 8 to 13 mph, with gusts as high as 18 mph.

    Low: 80 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 78. South wind around 10 mph.
Wednesday
Sunny, with a high near 93. Heat index values as high as 106. South wind 7 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 77. South southeast wind 6 to 14 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 93. Heat index values as high as 103. Light south southwest wind becoming south southeast 6 to 11 mph in the morning.
Thursday Night
Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph.
Friday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 92. Light south southwest wind becoming south southeast 6 to 11 mph in the morning. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 79. South southeast wind 7 to 10 mph.
Saturday
Partly sunny, with a high near 92. South wind 7 to 14 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 80. South southeast wind 8 to 13 mph, with gusts as high as 18 mph.
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.
Monday Night
Mostly clear, with a low around 80.
Tuesday
Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.64°W
Last Update:
12:31 am CDT Jul 16, 2025
Forecast Valid:
12am CDT Jul 16, 2025-6pm CDT Jul 22, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation