Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

87°F

31°C

Humidity 55%
Wind Speed NE 5 mph
Barometer 29.93 in
Dewpoint 69°F (21°C)
Visibility 9.00 mi
Heat Index91°F (33°C)
Last update 26 Aug 8:15 pm CDT
Extended Forecast for

Sadler TX

Heat Advisory August 26, 08:29pm until August 27, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 26, 08:29pm until August 27, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • Tonight

    Low: 76 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers after 4pm.  Sunny, with a high near 98. Heat index values as high as 105. North northeast wind 5 to 10 mph.

    High: 98 °F

    Sunny then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A 10 percent chance of showers before 7pm.  Partly cloudy, with a low around 74. Northeast wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 74 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 97. Heat index values as high as 103. Calm wind becoming east around 5 mph in the afternoon.

    High: 97 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. Southeast wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. South wind around 5 mph.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 77. South southeast wind around 5 mph.

    Low: 77 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 99. South wind around 10 mph.

    High: 99 °F

    Hot

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 76. North northeast wind around 5 mph. Chance of precipitation is 20%.
Thursday
A 20 percent chance of showers after 4pm. Sunny, with a high near 98. Heat index values as high as 105. North northeast wind 5 to 10 mph.
Thursday Night
A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 74. Northeast wind 5 to 10 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 97. Heat index values as high as 103. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 75. Southeast wind around 5 mph.
Saturday
Sunny and hot, with a high near 99. South wind around 5 mph.
Saturday Night
Clear, with a low around 77. South southeast wind around 5 mph.
Sunday
Sunny and hot, with a high near 99. South wind around 10 mph.
Sunday Night
Clear, with a low around 77. South wind around 10 mph.
Monday
Sunny and hot, with a high near 99.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 78.
Wednesday
Sunny and hot, with a high near 100.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Sadler TX
 33.68°N 96.84°W (Elev. 699 ft)
6:06 pm CDT Aug 26, 2026
8pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database