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

Nacogdoches, A L Mangham Jr. Regional Airport (KOCH)

Lat: 31.58°NLon: 94.72°WElev: 354ft.

Fair

79°F

26°C

Humidity 79%
Wind Speed Calm
Barometer 29.97 in (1014.7 mb)
Dewpoint 72°F (22°C)
Visibility NA
Heat Index82°F (28°C)
Last update 22 Aug 10:56 pm CDT
Extended Forecast for

Nacogdoches TX

Heat Advisory August 22, 11:37pm until August 23, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 22, 11:37pm until August 23, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Tonight

    Low: 79 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 105. Heat index values as high as 113. Calm wind becoming west around 5 mph in the afternoon.

    High: 105 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 79. South wind around 5 mph.

    Low: 79 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 104. Heat index values as high as 110. Southwest wind 5 to 10 mph.

    High: 104 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. South wind around 10 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 103.

    High: 103 °F

    Hot

  • Tuesday Night

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

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 103.

    High: 103 °F

    Hot

Detailed Forecast

Tonight
Partly cloudy, with a low around 79. Calm wind becoming southwest around 5 mph.
Sunday
Mostly sunny and hot, with a high near 105. Heat index values as high as 113. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 79. South wind around 5 mph.
Monday
Sunny and hot, with a high near 104. Heat index values as high as 110. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 78. South wind around 10 mph.
Tuesday
Sunny and hot, with a high near 103.
Tuesday Night
Mostly clear, with a low around 78.
Wednesday
Sunny and hot, with a high near 103.
Wednesday Night
Partly cloudy, with a low around 77.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 101.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 100.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny and hot, with a high near 99.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nacogdoches TX
 31.61°N 94.65°W (Elev. 338 ft)
Last Update:
6:31 pm CDT Aug 22, 2026
Forecast Valid:
11pm CDT Aug 22, 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