Heat Wave Persists Over the Central U.S.; Significant Flooding Expected in the Northern Mid-Atlantic Tuesday

Dangerous and extreme heat will remain across portions of the Central U.S. this week, persisting across the Mid to Lower Mississippi Valleys, Gulf Coast, Southern Plains and portions of Texas. A heat wave over the Southwest will intensify late this week. Severe thunderstorms and flash flooding will spread from the Great Lakes/Ohio Valley to the Mid-Atlantic and Northeast the next few days. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

85°F

29°C

Humidity 58%
Wind Speed S 12 mph
Barometer 29.87 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 28 Jul 12:55 am CDT
Extended Forecast for

3 Miles NW Bells TX

Heat Advisory July 28, 01:14am until July 28, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 28, 01:14am until July 28, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • Overnight

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 102. Heat index values as high as 110. South wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Tuesday Night

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

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 101. Heat index values as high as 109. South southwest wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 80. South southeast wind around 5 mph.

    Low: 80 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 101. South wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 79. South southeast wind around 10 mph.

    Low: 79 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 102. Southwest wind around 10 mph.

    High: 102 °F

    Hot

Detailed Forecast

Overnight
Mostly clear, with a low around 79. South wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 102. Heat index values as high as 110. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 79. South wind around 5 mph.
Wednesday
Mostly sunny and hot, with a high near 101. Heat index values as high as 109. South southwest wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 80. South southeast wind around 5 mph.
Thursday
Mostly sunny and hot, with a high near 101. South wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 79. South southeast wind around 10 mph.
Friday
Mostly sunny and hot, with a high near 102. Southwest wind around 10 mph.
Friday Night
Mostly clear, with a low around 79. South southwest wind 5 to 10 mph.
Saturday
Sunny, with a high near 98.
Saturday Night
Clear, with a low around 74.
Sunday
Sunny, with a high near 96.
Sunday Night
Clear, with a low around 75.
Monday
Sunny, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Bells TX
 33.64°N 96.44°W (Elev. 610 ft)
12:41 am CDT Jul 28, 2026
1am CDT Jul 28, 2026-6pm CDT Aug 3, 2026
 
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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