News Headlines
- Looking Beyond the 7-Day Forecast? Check out our latest Extended Range Weather Pattern Discussion for North and Central Texas.
- New Drought Information Statement Available
- September is National Preparedness Month. Join us each week as we share important safety and preparedness information through our social media accounts. Check out our latest weather safety graphics here!
Hazardous Weather Conditions
Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
A Few Clouds
99°F
37°C
| Humidity | 33% |
| Wind Speed | SE 14 mph |
| Barometer | 30.14 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 9.00 mi |
| Heat Index | 102°F (39°C) |
| Last update | 16 Sep 3:50 pm CDT |
Extended Forecast for
5 Miles NNE Luella TX
Heat Advisory September 16, 03:55pm until September 16, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
This Afternoon
High: 100 °F
Hot
Tonight
Low: 77 °F
Mostly Clear
Thursday
High: 99 °F
Hot
Thursday Night
Low: 76 °F
Mostly Clear
Friday
High: 99 °F
Hot
Friday Night
Low: 75 °F
Mostly Clear
Saturday
High: 100 °F
Hot
Saturday Night
Low: 75 °F
Clear
Detailed Forecast
This Afternoon
Sunny and hot, with a high near 100. Heat index values as high as 103. South southeast wind around 10 mph.
Tonight
Mostly clear, with a low around 77. South southeast wind around 5 mph.
Thursday
Mostly sunny and hot, with a high near 99. Heat index values as high as 104. South wind around 5 mph.
Thursday Night
Mostly clear, with a low around 76. Southeast wind around 5 mph.
Friday
Sunny and hot, with a high near 99. Light south wind increasing to 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 75. South southeast wind around 5 mph.
Saturday
Sunny and hot, with a high near 100. South southwest wind 5 to 10 mph.
Saturday Night
Clear, with a low around 75. South wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Sunday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 74.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles NNE Luella TX
33.64°N 96.52°W (Elev. 679 ft)
33.64°N 96.52°W (Elev. 679 ft)
1:26 pm CDT Sep 16, 2026
3pm CDT Sep 16, 2026-6pm CDT Sep 22, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
