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

Midlothian/Waxahachie, Mid-Way Regional Airport (KJWY)

Lat: 32.46°NLon: 96.91°WElev: 712ft.

A Few Clouds

100°F

38°C

Humidity 37%
Wind Speed E 6 mph
Barometer 29.99 in
Dewpoint 69°F (21°C)
Visibility 9.00 mi
Heat Index107°F (42°C)
Last update 21 Aug 4:35 pm CDT
Extended Forecast for

Glenn Heights TX

Extreme Heat Warning August 21, 04:47pm until August 22, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 21, 04:47pm until August 22, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • This Afternoon

    High: 104 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 105. South southwest wind around 5 mph becoming northeast in the afternoon.

    High: 105 °F

    Hot

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 10pm.  Mostly cloudy, then gradually becoming clear, with a low around 79. South southwest wind 5 to 10 mph.

    Low: 79 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 104. South wind 5 to 10 mph.

    High: 104 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 81. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 81 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 105. South southwest wind 10 to 15 mph.

    High: 105 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 80. South wind around 15 mph, with gusts as high as 20 mph.

    Low: 80 °F

    Clear

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 104. Heat index values as high as 108. South southeast wind around 5 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 79. South wind 5 to 10 mph.
Saturday
Mostly sunny and hot, with a high near 105. South southwest wind around 5 mph becoming northeast in the afternoon.
Saturday Night
A 10 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, then gradually becoming clear, with a low around 79. South southwest wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 104. South wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 81. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny and hot, with a high near 105. South southwest wind 10 to 15 mph.
Monday Night
Clear, with a low around 80. South wind around 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 105. South southwest wind 10 to 15 mph.
Tuesday Night
Mostly clear, with a low around 79.
Wednesday
A 20 percent chance of showers. Sunny and hot, with a high near 103.
Wednesday Night
Mostly clear, with a low around 78.
Thursday
Sunny and hot, with a high near 102.
Thursday Night
Mostly clear, with a low around 77.
Friday
A 20 percent chance of showers. Sunny and hot, with a high near 101.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Glenn Heights TX
 32.55°N 96.85°W (Elev. 699 ft)
4:03 pm CDT Aug 21, 2026
4pm CDT Aug 21, 2026-6pm CDT Aug 28, 2026
 
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