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

84°F

29°C

Humidity 68%
Wind Speed NE 3 mph
Barometer 29.97 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 26 Aug 10:55 pm CDT
Extended Forecast for

Pottsboro TX

Heat Advisory August 26, 11:04pm until August 27, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 26, 11:04pm until August 27, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • Tonight

    Low: 75 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 98. Heat index values as high as 104. Northeast wind 5 to 10 mph.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 74. East northeast wind 5 to 10 mph.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 97. Heat index values as high as 103. East wind around 5 mph.

    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 5 to 10 mph.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 98. South wind around 10 mph.

    High: 98 °F

    Sunny

Detailed Forecast

Tonight
A 20 percent chance of showers before 1am. Mostly clear, with a low around 75. North wind around 5 mph becoming south after midnight.
Thursday
Sunny, with a high near 98. Heat index values as high as 104. Northeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 74. East northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 97. Heat index values as high as 103. East wind around 5 mph.
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 5 to 10 mph.
Saturday Night
Clear, with a low around 76. South southeast wind 5 to 10 mph.
Sunday
Sunny, with a high near 98. South wind around 10 mph.
Sunday Night
Clear, with a low around 76. South wind around 10 mph.
Monday
Sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Sunny, with a high near 98.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 99.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Pottsboro TX
 33.75°N 96.66°W (Elev. 797 ft)
9:26 pm CDT Aug 26, 2026
11pm 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