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

Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Fair with Haze

57°F

14°C

Humidity 41%
Wind Speed SE 15 mph
Barometer 30.22 in
Dewpoint 33°F (1°C)
Visibility 6.00 mi
Last update 17 Mar 6:55 pm CDT
Extended Forecast for

7 Miles SE Port Lavaca TX

  • Tonight

    Tonight: Mostly clear, with a low around 53. South southeast wind 7 to 14 mph.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. South wind 7 to 14 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Southeast wind 6 to 13 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. South southwest wind 5 to 13 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 61. South wind 6 to 14 mph.

    Low: 61 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 80. Southwest wind 6 to 13 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 62. South wind 8 to 11 mph.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 80. South southwest wind 6 to 15 mph, with gusts as high as 18 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 65. South wind 9 to 13 mph, with gusts as high as 18 mph.

    Low: 65 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 53. South southeast wind 7 to 14 mph.
Wednesday
Sunny, with a high near 72. South wind 7 to 14 mph.
Wednesday Night
Mostly clear, with a low around 59. Southeast wind 6 to 13 mph.
Thursday
Sunny, with a high near 76. South southwest wind 5 to 13 mph.
Thursday Night
Clear, with a low around 61. South wind 6 to 14 mph.
Friday
Sunny, with a high near 80. Southwest wind 6 to 13 mph.
Friday Night
Clear, with a low around 62. South wind 8 to 11 mph.
Saturday
Sunny, with a high near 80. South southwest wind 6 to 15 mph, with gusts as high as 18 mph.
Saturday Night
Clear, with a low around 65. South wind 9 to 13 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 79.
Sunday Night
Clear, with a low around 65.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SE Port Lavaca TX
 28.56°N 96.53°W
Last Update:
1:51 pm CDT Mar 17, 2026
Forecast Valid:
7pm CDT Mar 17, 2026-6pm CDT Mar 24, 2026
 
Forecast Discussion
 
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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