National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. 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

99°F

37°C

Humidity 37%
Wind Speed S 8 mph
Barometer 29.96 in (1014.4 mb)
Dewpoint 68°F (20°C)
Visibility NA
Heat Index105°F (41°C)
Last update 18 Aug 6:56 pm CDT
Extended Forecast for

Chireno TX

Heat Advisory August 18, 07:32pm until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 07:32pm until August 19, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 77 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 101. Heat index values as high as 108. Southwest wind around 5 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 102. Heat index values as high as 109. Southwest wind around 5 mph.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Friday Night

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

    Low: 75 °F

    Slight Chance
    T-storms

  • Saturday

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

    High: 103 °F

    Hot

Detailed Forecast

Tonight
Partly cloudy, with a low around 77. South wind around 5 mph.
Wednesday
Mostly sunny and hot, with a high near 101. Heat index values as high as 108. Southwest wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 76. South wind around 5 mph.
Thursday
Sunny and hot, with a high near 102. Heat index values as high as 109. Southwest wind around 5 mph.
Thursday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 102.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75.
Saturday
Sunny and hot, with a high near 103.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny and hot, with a high near 103.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny and hot, with a high near 102.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny and hot, with a high near 102.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chireno TX
 31.5°N 94.34°W (Elev. 249 ft)
Last Update:
6:30 pm CDT Aug 18, 2026
Forecast Valid:
7pm CDT Aug 18, 2026-6pm CDT Aug 25, 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