Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Current conditions at

Cotulla, Cotulla-La Salle County Airport (KCOT)

Lat: 28.46° N Lon: 99.22° W Elev: 476 ft.

A Few Clouds

101°F

38°C

Humidity 28%
Wind Speed SE 5 mph
Barometer 29.94 in (1013.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 18 Aug 4:53 pm CDT
Detailed forecast for

McMullen County

Tonight
Partly cloudy this evening, then becoming mostly clear. Lows in the mid 70s. Southeast winds 10 to 15 mph with gusts up to 30 mph.
Wednesday
Partly cloudy in the morning, then becoming mostly cloudy. Hot with highs around 105. South winds 5 to 10 mph with gusts up to 20 mph.
Wednesday Night
Partly cloudy in the evening, then clearing. Lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 30 mph.
Thursday
Partly cloudy in the morning, then becoming sunny. Hot with highs around 106. Southeast winds 5 to 10 mph with gusts up to 25 mph. Heat index values up to 111.
Thursday Night
Mostly clear. Lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 30 mph.
Friday
Sunny, hot with highs 105 to 110. Heat index values up to 110.
Friday Night
Mostly clear. Lows in the upper 70s.
Saturday
Sunny, hot with highs 105 to 110.
Saturday Night
Mostly clear. Lows in the upper 70s.
Sunday
Sunny, hot with highs around 105.
Sunday Night
Mostly clear. Lows in the upper 70s.
Monday
Sunny, hot with highs around 105.
Monday Night
Mostly clear. Lows in the upper 70s.
Tuesday
Sunny, hot with highs 100 to 105.



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124 PM CDT Tue Aug 18 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database