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.

Fair

78°F

26°C

Humidity 82%
Wind Speed Calm
Barometer 30.02 in (1015.9 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 23 Aug 8:53 am CDT
Extended Forecast for

2 Miles W Hallsville TX

Heat Advisory August 23, 09:35am until August 23, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 23, 09:35am until August 23, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Today

    High: 104 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 78. Calm wind becoming south around 5 mph after midnight.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 103. Heat index values as high as 107. Southwest wind 5 to 10 mph.

    High: 103 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 104. Southwest wind 5 to 10 mph.

    High: 104 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 101.

    High: 101 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny and hot, with a high near 104. Heat index values as high as 108. Calm wind becoming west around 5 mph.
Tonight
Mostly clear, with a low around 78. Calm wind becoming south around 5 mph after midnight.
Monday
Mostly sunny and hot, with a high near 103. Heat index values as high as 107. Southwest wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 79. South wind 5 to 10 mph.
Tuesday
Mostly sunny and hot, with a high near 104. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 78.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 101.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99.
Thursday Night
Partly cloudy, with a low around 74.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Hallsville TX
 32.5°N 94.62°W (Elev. 358 ft)
Last Update:
6:30 am CDT Aug 23, 2026
Forecast Valid:
9am CDT Aug 23, 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