National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

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

4 Miles SSE Willis OK

  • This Afternoon

    This Afternoon: A 10 percent chance of showers. Mostly sunny and hot, with a high near 100. Heat index values as high as 103. Southeast wind around 5 mph.

    High: 100 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 77. Southeast wind around 5 mph.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Heat index values as high as 101. East southeast wind 5 to 10 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Increasing clouds, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 94. South wind 5 to 10 mph.

    High: 94 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 96. South southeast wind 5 to 10 mph.

    High: 96 °F

    Sunny

  • Friday Night

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

    Low: 76 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 97. South wind around 5 mph.

    High: 97 °F

    Sunny

Detailed Forecast

This Afternoon
A 10 percent chance of showers. Mostly sunny and hot, with a high near 100. Heat index values as high as 103. Southeast wind around 5 mph.
Tonight
Mostly clear, with a low around 77. Southeast wind around 5 mph.
Wednesday
Sunny, with a high near 96. Heat index values as high as 101. East southeast wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of showers after 1am. Increasing clouds, with a low around 76. South southeast wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 94. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
Friday
Sunny, with a high near 96. South southeast wind 5 to 10 mph.
Friday Night
Clear, with a low around 76. South southeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 97. South wind around 5 mph.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny, with a high near 98.
Sunday Night
Mostly clear, with a low around 77.
Labor Day
Sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Sunny, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Willis OK
 33.84°N 96.82°W (Elev. 656 ft)
Last Update:
3:32 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

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Chance of Precipitation