Dangerous Heat over the South-Central and Southwest U.S. Through Next Week
Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >
Current conditions at
Port Lavaca - Calhoun County Airport (KPKV)
Lat: 28.65°NLon: 96.68°WElev: 27ft.
Fair
90°F
32°C
| Humidity | 60% |
| Wind Speed | S 10 mph |
| Barometer | 29.94 in |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 100°F (38°C) |
| Last update | 22 Aug 7:15 pm CDT |
Extended Forecast for
7 Miles SE Port Lavaca TX
Tonight
Low: 77 °F
Mostly Clear
Sunday
High: 94 °F
Sunny
Sunday Night
Low: 78 °F
Mostly Clear
Monday
High: 93 °F
Sunny
Monday Night
Low: 79 °F
Clear
Tuesday
High: 93 °F
Sunny
Tuesday Night
Low: 81 °F
Clear
Wednesday
High: 91 °F
Sunny
Wednesday Night
Low: 81 °F
Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 77. South wind 5 to 11 mph.
Sunday
Sunny, with a high near 94. Heat index values as high as 105. Light and variable wind becoming south southeast 6 to 11 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Monday
Sunny, with a high near 93. Heat index values as high as 105. South southwest wind 5 to 11 mph.
Monday Night
Clear, with a low around 79. South southeast wind 7 to 11 mph.
Tuesday
Sunny, with a high near 93. South southwest wind 6 to 13 mph.
Tuesday Night
Clear, with a low around 81. South southeast wind 10 to 14 mph.
Wednesday
Sunny, with a high near 91. South southwest wind 8 to 13 mph.
Wednesday Night
Clear, with a low around 81. South wind 10 to 14 mph.
Thursday
Sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 81.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 81.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
7 Miles SE Port Lavaca TX
28.56°N 96.53°W
28.56°N 96.53°W
4:46 pm CDT Aug 22, 2026
7pm CDT Aug 22, 2026-6pm CDT Aug 29, 2026
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