Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Wednesday

In the Upper Midwest, heavy to excessive rain may bring flash and urban flooding through Wednesday. Scattered severe thunderstorms capable of large hail and damaging wind gusts are possible from the central High Plains into the Upper Midwest Wednesday. Extreme heat is ongoing over the Desert Southwest through Thursday. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

A Few Clouds

86°F

30°C

Humidity 78%
Wind Speed S 7 mph
Barometer 30.00 in
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 7 Jul 7:35 pm CDT
Extended Forecast for

Port Lavaca TX

  • Tonight

    Tonight: Mostly clear, with a low around 79. South southeast wind 6 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms between 10am and 2pm.  Mostly sunny, with a high near 93. Heat index values as high as 106. Light south southwest wind becoming south southeast 8 to 13 mph in the morning.  Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79. South wind 7 to 13 mph.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. Heat index values as high as 107. South southeast wind 5 to 14 mph, with gusts as high as 18 mph.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79. South southeast wind 8 to 15 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 92. South southeast wind 7 to 15 mph, with gusts as high as 20 mph.

    High: 92 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 81. South southeast wind 8 to 15 mph, with gusts as high as 20 mph.

    Low: 81 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 89. South southeast wind 7 to 14 mph, with gusts as high as 18 mph.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 81. Southeast wind 8 to 13 mph.

    Low: 81 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 79. South southeast wind 6 to 10 mph.
Wednesday
A slight chance of showers and thunderstorms between 10am and 2pm. Mostly sunny, with a high near 93. Heat index values as high as 106. Light south southwest wind becoming south southeast 8 to 13 mph in the morning. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 79. South wind 7 to 13 mph.
Thursday
Sunny, with a high near 93. Heat index values as high as 107. South southeast wind 5 to 14 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 79. South southeast wind 8 to 15 mph, with gusts as high as 20 mph.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92. South southeast wind 7 to 15 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 81. South southeast wind 8 to 15 mph, with gusts as high as 20 mph.
Saturday
A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. South southeast wind 7 to 14 mph, with gusts as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 81. Southeast wind 8 to 13 mph.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 81.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 80.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.64°W
2:06 pm CDT Jul 7, 2026
7pm CDT Jul 7, 2026-6pm CDT Jul 14, 2026
 
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Additional Resources

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