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.

Fair

50°F

10°C

Humidity 24%
Wind Speed Vrbl 3 mph
Barometer 30.58 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 23 Feb 12:50 pm CST
Extended Forecast for

4 Miles SSW Grayson County Airport TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 54. North northeast wind around 5 mph becoming calm.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. Light south southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. South southeast wind 5 to 10 mph becoming east northeast after midnight.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 44. North wind 5 to 10 mph becoming east after midnight.

    Low: 44 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 72. East wind 5 to 10 mph becoming south in the afternoon.

    High: 72 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 54. North northeast wind around 5 mph becoming calm.
Tonight
Mostly clear, with a low around 38. Light south southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 69. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 54. South wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 77. South wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 54. South southeast wind 5 to 10 mph becoming east northeast after midnight.
Thursday
Sunny, with a high near 71. North wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 44. North wind 5 to 10 mph becoming east after midnight.
Friday
Sunny, with a high near 72. East wind 5 to 10 mph becoming south in the afternoon.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Grayson County Airport TX
 33.69°N 96.68°W (Elev. 797 ft)
Last Update:
12:26 pm CST Feb 23, 2026
Forecast Valid:
1pm CST Feb 23, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation