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

89°F

32°C

Humidity 52%
Wind Speed Calm
Barometer 29.94 in (1012.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 23 Aug 12:53 am CDT
Extended Forecast for

5 Miles S Lakeport TX

Heat Advisory August 23, 01:25am until August 23, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 23, 01:25am until August 23, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Overnight

    Low: 79 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Partly sunny and hot, with a high near 104. Heat index values as high as 108. Calm wind becoming south around 5 mph.

    High: 104 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. South wind around 5 mph.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 104. Heat index values as high as 108. Southwest wind 5 to 10 mph.

    High: 104 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 79. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly 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

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Mostly sunny and hot, with a high near 102.

    High: 102 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 79. Calm wind.
Sunday
Partly sunny and hot, with a high near 104. Heat index values as high as 108. Calm wind becoming south around 5 mph.
Sunday Night
Mostly clear, with a low around 78. South wind around 5 mph.
Monday
Mostly sunny and hot, with a high near 104. Heat index values as high as 108. Southwest wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 79. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny and hot, with a high near 104.
Tuesday Night
Mostly clear, with a low around 79.
Wednesday
A 20 percent chance of showers before 1pm. Mostly sunny and hot, with a high near 102.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 100.
Thursday Night
A 20 percent chance of showers and thunderstorms. 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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Lakeport TX
 32.34°N 94.73°W (Elev. 407 ft)
Last Update:
12:50 am CDT Aug 23, 2026
Forecast Valid:
1am CDT Aug 23, 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