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

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Mostly Cloudy

84°F

29°C

Humidity 79%
Wind Speed S 13 mph
Barometer 30.11 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 23 Jun 12:50 pm CDT
Extended Forecast for

2 Miles SSE Cartwright OK

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 90. Heat index values as high as 100. South wind around 5 mph.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. South southeast wind around 5 mph.

    Low: 76 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 4pm. Mostly sunny, with a high near 93. Heat index values as high as 102. South wind 5 to 10 mph.

    High: 93 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 77. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 95. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 78. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 97. South wind around 15 mph, with gusts as high as 25 mph.

    High: 97 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 90. Heat index values as high as 100. South wind around 5 mph.
Tonight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. South southeast wind around 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms before 4pm. Mostly sunny, with a high near 93. Heat index values as high as 102. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 76. South wind around 5 mph.
Thursday
Sunny, with a high near 93. South wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 77. South wind around 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 95. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 78. South wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 97. South wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Sunny, with a high near 98.
Sunday Night
Mostly clear, with a low around 79.
Monday
Sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Cartwright OK
 33.82°N 96.55°W (Elev. 515 ft)
Last Update:
12:21 pm CDT Jun 23, 2026
Forecast Valid:
1pm CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
Forecast Discussion
 
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Additional Resources

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