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

Marshall (KASL)

Lat: 32.52°NLon: 94.31°WElev: 357ft.

Light Rain Thunderstorm in Vicinity

77°F

25°C

Humidity 100%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 77°F (25°C)
Visibility 8.00 mi
Heat Index78°F (26°C)
Last update 23 Aug 2:15 am CDT
Extended Forecast for

4 Miles NW Jefferson TX

Heat Advisory August 23, 02:31am until August 23, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 23, 02:31am until August 23, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Overnight

    Low: 76 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 103. Heat index values as high as 110. Calm wind.

    High: 103 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. Calm wind.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 102. Heat index values as high as 107. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 102 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. South wind around 5 mph becoming calm.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 103.

    High: 103 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77.

    Low: 77 °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

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Calm wind.
Sunday
Mostly sunny and hot, with a high near 103. Heat index values as high as 110. Calm wind.
Sunday Night
Mostly clear, with a low around 76. Calm wind.
Monday
Mostly sunny and hot, with a high near 102. Heat index values as high as 107. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 77. South wind around 5 mph becoming calm.
Tuesday
Mostly sunny and hot, with a high near 103.
Tuesday Night
Mostly clear, with a low around 77.
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. Partly cloudy, with a low around 74.
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 73.
Friday
Sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny and hot, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Jefferson TX
 32.81°N 94.41°W (Elev. 213 ft)
Last Update:
1:40 am CDT Aug 23, 2026
Forecast Valid:
2am 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