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Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72° N Lon: 96.67° W Elev: 748 ft.

Fair

88°F

31°C

Humidity 62%
Wind Speed S 12 mph
Barometer 29.90 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 13 Jun 6:50 pm CDT
Detailed forecast for

Grayson County

Tonight
Mostly clear this evening, then becoming partly cloudy. Lows in the lower 70s. South winds around 5 mph.
Saturday
Partly sunny. A 20 percent chance of showers and thunderstorms in the morning. Humid with highs around 90. South winds around 5 mph.
Saturday Night
Partly cloudy. Humid with lows in the mid 70s. South winds around 5 mph.
Sunday
Mostly sunny. A 20 percent chance of showers and thunderstorms in the morning. Humid with highs around 90. South winds 5 to 10 mph.
Sunday Night
Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 70s. South winds around 5 mph.
Monday
Mostly sunny. Highs in the lower 90s.
Monday Night
Mostly clear. Lows in the mid 70s.
Tuesday
Sunny. Highs in the lower 90s.
Tuesday Night
Mostly clear. Lows in the mid 70s.
Wednesday
Mostly sunny. Highs in the lower 90s.
Wednesday Night
Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows in the mid 70s.
Juneteenth
Mostly sunny. Highs in the lower 90s.
Thursday Night
Partly cloudy. Lows in the lower 70s.
Friday
Sunny. Highs in the lower 90s.



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526 PM CDT Fri Jun 13 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database