National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fog/Mist

75°F

24°C

Humidity 100%
Wind Speed S 3 mph
Barometer 30.06 in
Dewpoint 75°F (24°C)
Visibility 4.00 mi
Last update 17 Aug 1:15 am CDT
Extended Forecast for

Port Lavaca TX

  • Overnight

    Overnight: Mostly clear, with a low around 79. South wind 5 to 8 mph.

    Low: 79 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. Heat index values as high as 105. Light and variable wind becoming southeast 9 to 14 mph in the afternoon.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 81. South southeast wind 7 to 15 mph.

    Low: 81 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Heat index values as high as 105. South southeast wind 5 to 14 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 80. South wind 10 to 14 mph.

    Low: 80 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. South southwest wind 8 to 15 mph, with gusts as high as 18 mph.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 81. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 81 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. South wind 9 to 14 mph.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 82. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 82 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 79. South wind 5 to 8 mph.
Monday
Sunny, with a high near 89. Heat index values as high as 105. Light and variable wind becoming southeast 9 to 14 mph in the afternoon.
Monday Night
Mostly clear, with a low around 81. South southeast wind 7 to 15 mph.
Tuesday
Sunny, with a high near 89. Heat index values as high as 105. South southeast wind 5 to 14 mph.
Tuesday Night
Mostly clear, with a low around 80. South wind 10 to 14 mph.
Wednesday
Sunny, with a high near 90. South southwest wind 8 to 15 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 81. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 90. South wind 9 to 14 mph.
Thursday Night
Mostly clear, with a low around 82. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 81.
Saturday
Sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 81.
Sunday
Sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Lavaca TX
 28.62°N 96.61°W
Last Update:
1:21 am CDT Aug 17, 2026
Forecast Valid:
1am CDT Aug 17, 2026-6pm CDT Aug 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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