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

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

82°F

28°C

Humidity 89%
Wind Speed S 7 mph
Barometer 29.96 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 22 Aug 9:55 pm CDT
Extended Forecast for

5 Miles NW Long Mott TX

  • Tonight

    Tonight: Mostly clear, with a low around 79. South wind 6 to 9 mph.

    Low: 79 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 94. Heat index values as high as 101. Light and variable wind becoming south southeast 6 to 11 mph in the afternoon.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 79. South wind 5 to 11 mph.

    Low: 79 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 93. Heat index values as high as 103. South southwest wind 5 to 11 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 80. South southeast wind 7 to 13 mph, with gusts as high as 18 mph.

    Low: 80 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. South southwest wind 5 to 11 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 79. South southeast wind 7 to 13 mph.

    Low: 79 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. South southwest wind 5 to 11 mph.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79. South southeast wind 8 to 13 mph.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 79. South wind 6 to 9 mph.
Sunday
Sunny, with a high near 94. Heat index values as high as 101. Light and variable wind becoming south southeast 6 to 11 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 79. South wind 5 to 11 mph.
Monday
Sunny, with a high near 93. Heat index values as high as 103. South southwest wind 5 to 11 mph.
Monday Night
Clear, with a low around 80. South southeast wind 7 to 13 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 93. South southwest wind 5 to 11 mph.
Tuesday Night
Clear, with a low around 79. South southeast wind 7 to 13 mph.
Wednesday
Sunny, with a high near 95. South southwest wind 5 to 11 mph.
Wednesday Night
Mostly clear, with a low around 79. South southeast wind 8 to 13 mph.
Thursday
Sunny, with a high near 95.
Thursday Night
A 20 percent chance of showers. Mostly clear, with a low around 79.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 79.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Long Mott TX
 28.53°N 96.84°W
Last Update:
4:46 pm CDT Aug 22, 2026
Forecast Valid:
10pm CDT Aug 22, 2026-6pm CDT Aug 29, 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