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

65°F

18°C

Humidity 74%
Wind Speed SE 8 mph
Barometer 29.99 in
Dewpoint 57°F (14°C)
Visibility 9.00 mi
Last update 11 Dec 4:55 pm CST
Extended Forecast for

Port Lavaca TX

  • Tonight

    Tonight: Widespread dense fog, mainly after 3am. Otherwise, partly cloudy, with a low around 57. East southeast wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear
    then Dense
    Fog

  • Friday

    Friday: Widespread dense fog before 10am. Otherwise, partly sunny, with a high near 75. Light and variable wind becoming south 5 to 8 mph in the morning.

    High: 75 °F

    Dense Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after midnight. Patchy fog between 7pm and 1am. Otherwise, increasing clouds, with a low around 62. East southeast wind around 6 mph.

    Low: 62 °F

    Patchy Fog
    then Slight
    Chance
    T-storms and
    Patchy Fog

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 9am. Mostly sunny, with a high near 76. South southeast wind 5 to 9 mph. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after midnight. Patchy fog between 8pm and 3am. Otherwise, mostly cloudy, with a low around 60. Calm wind becoming north 5 to 7 mph after midnight.

    Low: 60 °F

    Patchy Fog
    then Slight
    Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 66. North northeast wind 8 to 18 mph, with gusts as high as 28 mph.

    High: 66 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 41. Northeast wind 10 to 16 mph, with gusts as high as 23 mph.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 57. Northeast wind 6 to 10 mph.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 48. East wind around 6 mph.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Widespread dense fog, mainly after 3am. Otherwise, partly cloudy, with a low around 57. East southeast wind around 5 mph becoming calm in the evening.
Friday
Widespread dense fog before 10am. Otherwise, partly sunny, with a high near 75. Light and variable wind becoming south 5 to 8 mph in the morning.
Friday Night
A 20 percent chance of showers and thunderstorms after midnight. Patchy fog between 7pm and 1am. Otherwise, increasing clouds, with a low around 62. East southeast wind around 6 mph.
Saturday
A chance of showers, with thunderstorms also possible after 9am. Mostly sunny, with a high near 76. South southeast wind 5 to 9 mph. Chance of precipitation is 30%.
Saturday Night
A 20 percent chance of showers and thunderstorms after midnight. Patchy fog between 8pm and 3am. Otherwise, mostly cloudy, with a low around 60. Calm wind becoming north 5 to 7 mph after midnight.
Sunday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 66. North northeast wind 8 to 18 mph, with gusts as high as 28 mph.
Sunday Night
Mostly cloudy, with a low around 41. Northeast wind 10 to 16 mph, with gusts as high as 23 mph.
Monday
Mostly sunny, with a high near 57. Northeast wind 6 to 10 mph.
Monday Night
Mostly cloudy, with a low around 48. East wind around 6 mph.
Tuesday
A 20 percent chance of showers after noon. Mostly cloudy, with a high near 69.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 60.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 75.
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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:
1:02 pm CST Dec 11, 2025
Forecast Valid:
5pm CST Dec 11, 2025-6pm CST Dec 18, 2025
 
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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