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

40°F

4°C

Humidity 82%
Wind Speed NW 17 mph
Barometer 30.29 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 10 Jan 4:35 am CST
Extended Forecast for

Grayson County Airport TX

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 53. North northwest wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 53 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 34. West northwest wind around 10 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56. Northwest wind 5 to 10 mph becoming northeast in the afternoon.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63. Southwest wind 5 to 10 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. South southwest wind 5 to 10 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65. Southwest wind around 10 mph.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42. Southwest wind around 10 mph becoming west northwest after midnight.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 53. North northwest wind 10 to 20 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 34. West northwest wind around 10 mph.
Sunday
Sunny, with a high near 56. Northwest wind 5 to 10 mph becoming northeast in the afternoon.
Sunday Night
Mostly clear, with a low around 34. Calm wind becoming south southwest around 5 mph after midnight.
Monday
Sunny, with a high near 63. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 40. South southwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 65. Southwest wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 42. Southwest wind around 10 mph becoming west northwest after midnight.
Wednesday
Mostly sunny, with a high near 63. North wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
Sunny, with a high near 55.
Thursday Night
Clear, with a low around 36.
Friday
Sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
Last Update:
11:21 pm CST Jan 9, 2026
Forecast Valid:
4am CST Jan 10, 2026-6pm CST Jan 16, 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