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

33°F

1°C

Humidity 64%
Wind Speed S 7 mph
Barometer 30.47 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 12 Jan 6:35 am CST
Extended Forecast for

Grayson County Airport TX

  • Today

    Today: Partly sunny, with a high near 63. Southwest wind 5 to 10 mph.

    High: 63 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. South wind 5 to 10 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. Southwest wind 10 to 15 mph.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 43. South southwest wind around 10 mph becoming northwest after midnight.

    Low: 43 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. North wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 53. North northwest wind 5 to 10 mph becoming south in the afternoon.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. South wind 5 to 10 mph becoming northeast after midnight.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 56. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 63. Southwest wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 38. South wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 66. Southwest wind 10 to 15 mph.
Tuesday Night
Partly cloudy, with a low around 43. South southwest wind around 10 mph becoming northwest after midnight.
Wednesday
Mostly sunny, with a high near 59. North wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 28. North wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 53. North northwest wind 5 to 10 mph becoming south in the afternoon.
Thursday Night
Mostly clear, with a low around 34. South wind 5 to 10 mph becoming northeast after midnight.
Friday
Mostly sunny, with a high near 56. North wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Sunny, with a high near 52.
Saturday Night
Clear, with a low around 31.
Sunday
Sunny, with a high near 57.
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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:
5:06 am CST Jan 12, 2026
Forecast Valid:
7am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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