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

63°F

17°C

Humidity 34%
Wind Speed S 10 mph
Barometer 29.65 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 18 Feb 6:50 pm CST
Extended Forecast for

Grayson County Airport TX

  • Tonight

    Tonight: Mostly clear, with a low around 56. South wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74. West wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41. West wind 5 to 10 mph becoming north northeast in the evening.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65. North northeast wind 5 to 10 mph becoming east southeast in the afternoon.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. East southeast wind 5 to 10 mph becoming north after midnight.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 60. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59. North wind around 10 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. North northeast wind around 5 mph.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 56. South wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 74. West wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 41. West wind 5 to 10 mph becoming north northeast in the evening.
Friday
Sunny, with a high near 65. North northeast wind 5 to 10 mph becoming east southeast in the afternoon.
Friday Night
Mostly clear, with a low around 41. East southeast wind 5 to 10 mph becoming north after midnight.
Saturday
Sunny, with a high near 60. North wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 35. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 59. North wind around 10 mph.
Sunday Night
Mostly clear, with a low around 32. North northeast wind around 5 mph.
Monday
Sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 66.
Tuesday Night
Mostly cloudy, with a low around 50.
Wednesday
Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
Last Update:
5:21 pm CST Feb 18, 2026
Forecast Valid:
7pm CST Feb 18, 2026-6pm CST Feb 25, 2026
 
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