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Hazardous Weather Conditions

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fog/Mist

25°C

77°F

Humidity 100%
Wind Speed SW 6 km/h
Barometer 29.85 in
Dewpoint 25°C (77°F)
Visibility 8 km
Heat Index26°C (78°F)
Last update 22 Jul 2:35 am CDT
Extended Forecast for

Port Lavaca TX

Heat Advisory July 22, 12:00pm until July 22, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 25. West southwest wind around 10 km/h.

    Low: 25 °C

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 38. Heat index values as high as 46. West southwest wind 5 to 11 km/h becoming southeast in the afternoon.

    High: 38 °C

    Hot

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 27. South southwest wind 8 to 16 km/h becoming west northwest after midnight.

    Low: 27 °C

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 35. Heat index values as high as 43. North wind 8 to 18 km/h becoming south southeast in the afternoon.

    High: 35 °C

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 26. South wind 11 to 18 km/h. Chance of precipitation is 50%.

    Low: 26 °C

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 33. South wind 13 to 18 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 32 km/h.

    High: 33 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. South southeast wind 14 to 23 km/h, with gusts as high as 32 km/h.

    Low: 27 °C

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 33. South wind 13 to 21 km/h.

    High: 33 °C

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. South southeast wind 13 to 23 km/h.

    Low: 26 °C

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 25. West southwest wind around 10 km/h.
Wednesday
Sunny and hot, with a high near 38. Heat index values as high as 46. West southwest wind 5 to 11 km/h becoming southeast in the afternoon.
Wednesday Night
Increasing clouds, with a low around 27. South southwest wind 8 to 16 km/h becoming west northwest after midnight.
Thursday
Partly sunny, with a high near 35. Heat index values as high as 43. North wind 8 to 18 km/h becoming south southeast in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 26. South wind 11 to 18 km/h. Chance of precipitation is 50%.
Friday
Mostly sunny, with a high near 33. South wind 13 to 18 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 32 km/h.
Friday Night
Mostly clear, with a low around 27. South southeast wind 14 to 23 km/h, with gusts as high as 32 km/h.
Saturday
Sunny, with a high near 33. South wind 13 to 21 km/h.
Saturday Night
Mostly clear, with a low around 26. South southeast wind 13 to 23 km/h.
Sunday
Sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 26.
Monday
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Sunny, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.64°W
Last Update:
1:46 am CDT Jul 22, 2026
Forecast Valid:
2am CDT Jul 22, 2026-6pm CDT Jul 28, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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