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

73°F

23°C

Humidity 47%
Wind Speed SE 6 mph
Barometer 30.01 in
Dewpoint 52°F (11°C)
Visibility 7.00 mi
Last update 9 Feb 4:50 pm CST
Extended Forecast for

Grayson County Airport TX

  • Tonight

    Tonight: Cloudy, with a low around 60. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 74. South southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 74 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Cloudy, then gradually becoming partly cloudy, with a low around 47. North wind around 10 mph.

    Low: 47 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64. North wind 5 to 10 mph.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. North northeast wind around 5 mph becoming east southeast after midnight.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 74. East southeast wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55. South wind 5 to 10 mph.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after noon. Partly sunny, with a high near 75. South wind around 10 mph.

    High: 75 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers. Low around 54. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 54 °F

    Showers

Detailed Forecast

Tonight
Cloudy, with a low around 60. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 74. South southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A 40 percent chance of showers. Cloudy, then gradually becoming partly cloudy, with a low around 47. North wind around 10 mph.
Wednesday
Mostly sunny, with a high near 64. North wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 46. North northeast wind around 5 mph becoming east southeast after midnight.
Thursday
Mostly sunny, with a high near 74. East southeast wind 5 to 10 mph becoming south southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 55. South wind 5 to 10 mph.
Friday
A 40 percent chance of showers, mainly after noon. Partly sunny, with a high near 75. South wind around 10 mph.
Friday Night
Showers. Low around 54. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm. High near 65. Chance of precipitation is 80%.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 43.
Washington's Birthday
Mostly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
Last Update:
5:06 pm CST Feb 9, 2026
Forecast Valid:
5pm CST Feb 9, 2026-6pm CST Feb 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation