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Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Mostly Cloudy

99°F

37°C

Humidity 31%
Wind Speed E 7 mph
Barometer 29.97 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 1 Sep 3:50 pm CDT
Extended Forecast for

2 Miles E Willis OK

Heat Advisory September 2, 01:00pm until September 2, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: A 10 percent chance of showers. Mostly sunny and hot, with a high near 97. Heat index values as high as 100. Southeast wind around 6 mph.

    High: 97 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 79. Southeast wind 5 to 7 mph.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Heat index values as high as 102. East southeast wind 5 to 8 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Increasing clouds, with a low around 77. Southeast wind 7 to 9 mph.

    Low: 77 °F

    Clear then
    Slight Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 94. South wind 8 to 10 mph.

    High: 94 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 77.

    Low: 77 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

This Afternoon
A 10 percent chance of showers. Mostly sunny and hot, with a high near 97. Heat index values as high as 100. Southeast wind around 6 mph.
Tonight
Mostly clear, with a low around 79. Southeast wind 5 to 7 mph.
Wednesday
Sunny, with a high near 96. Heat index values as high as 102. East southeast wind 5 to 8 mph.
Wednesday Night
A 20 percent chance of showers after 1am. Increasing clouds, with a low around 77. Southeast wind 7 to 9 mph.
Thursday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 94. South wind 8 to 10 mph.
Thursday Night
Mostly clear, with a low around 78.
Friday
Sunny, with a high near 95.
Friday Night
Clear, with a low around 77.
Saturday
Sunny and hot, with a high near 97.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Sunny and hot, with a high near 97.
Sunday Night
Mostly clear, with a low around 78.
Labor Day
Sunny and hot, with a high near 98.
Monday Night
Mostly clear, with a low around 78.
Tuesday
Sunny and hot, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Willis OK
 33.89°N 96.8°W
Last Update:
1:27 pm CDT Sep 1, 2026
Forecast Valid:
4pm CDT Sep 1, 2026-6pm CDT Sep 8, 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