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 >

Hazardous Weather Conditions

Current conditions at

Longview - East Texas Regional Airport (KGGG)

Lat: 32.39°NLon: 94.71°WElev: 364ft.

Partly Cloudy

105°F

41°C

Humidity 28%
Wind Speed Vrbl 7 mph
Barometer 29.92 in (1012.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index110°F (43°C)
Last update 22 Aug 4:53 pm CDT
Extended Forecast for

6 Miles SSW Tatum TX

Heat Advisory August 22, 05:19pm until August 23, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 22, 05:19pm until August 23, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 107 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 79. Calm wind becoming south around 5 mph.

    Low: 79 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 106. Heat index values as high as 110. Calm wind becoming south around 5 mph in the afternoon.

    High: 106 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 80. South wind 5 to 10 mph.

    Low: 80 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 105. Southwest wind 5 to 10 mph.

    High: 105 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 104.

    High: 104 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 107. Heat index values as high as 110. Southwest wind around 5 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 79. Calm wind becoming south around 5 mph.
Sunday
Mostly sunny and hot, with a high near 106. Heat index values as high as 110. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 80. South wind 5 to 10 mph.
Monday
Mostly sunny and hot, with a high near 105. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 79.
Tuesday
Sunny and hot, with a high near 104.
Tuesday Night
Mostly clear, with a low around 79.
Wednesday
A slight chance of showers, with thunderstorms also possible after 1pm. Sunny and hot, with a high near 104. Chance of precipitation is 20%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 77.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 101.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Friday
Sunny and hot, with a high near 101.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny and hot, with a high near 101.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Tatum TX
 32.25°N 94.57°W (Elev. 292 ft)
Last Update:
1:37 pm CDT Aug 22, 2026
Forecast Valid:
5pm CDT Aug 22, 2026-6pm CDT Aug 29, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation