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

64°F

18°C

Humidity 37%
Wind Speed SE 6 mph
Barometer 30.26 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 7 Feb 12:50 pm CST
Extended Forecast for

Grayson County Airport TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 69. South southeast wind 5 to 10 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 51. South southeast wind 5 to 10 mph.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 72. Southwest wind 5 to 10 mph.

    High: 72 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49. South wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 76. East wind around 5 mph becoming south in the morning.

    High: 76 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60. South wind 5 to 10 mph.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after noon. Mostly cloudy, with a high near 73. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 73 °F

    Cloudy then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 54. South southwest wind 5 to 10 mph.

    Low: 54 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. West southwest wind around 5 mph.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 69. South southeast wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 51. South southeast wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 72. Southwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 49. South wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 76. East wind around 5 mph becoming south in the morning.
Monday Night
Mostly cloudy, with a low around 60. South wind 5 to 10 mph.
Tuesday
A 30 percent chance of showers after noon. Mostly cloudy, with a high near 73. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 54. South southwest wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 75. West southwest wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 48.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.68°W (Elev. 751 ft)
Last Update:
11:21 am CST Feb 7, 2026
Forecast Valid:
1pm CST Feb 7, 2026-6pm CST Feb 13, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation