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

Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. 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

82°F

28°C

Humidity 77%
Wind Speed Calm
Barometer 30.02 in (1016.6 mb)
Dewpoint 74°F (23°C)
Visibility NA
Heat Index88°F (31°C)
Last update 14 Sep 10:56 pm CDT
Extended Forecast for

Nacogdoches TX

Heat Advisory September 14, 11:42pm until September 15, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 14, 11:42pm until September 15, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Tonight

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming south around 5 mph in the afternoon.

    High: 97 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. Southeast wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 95. Heat index values as high as 105. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 95 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75. East wind around 5 mph becoming calm.

    Low: 75 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 74. South wind around 5 mph becoming calm.
Tuesday
Patchy fog before 9am. Otherwise, sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 75. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 95. Heat index values as high as 105. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 75. East wind around 5 mph becoming calm.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
Partly cloudy, with a low around 71.
Friday
Sunny and hot, with a high near 95.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny and hot, with a high near 95.
Saturday Night
Mostly clear, with a low around 71.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Sunday Night
Partly cloudy, with a low around 72.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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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:
6:55 pm CDT Sep 14, 2026
Forecast Valid:
11pm CDT Sep 14, 2026-6pm CDT Sep 21, 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