Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

34°F

1°C

Humidity 60%
Wind Speed E 5 mph
Barometer 30.21 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 22 Jan 6:50 am CST
Extended Forecast for

Grayson County Airport TX

Winter Storm Watch January 23, 12:00pm until January 25, 12:00pm
Extreme Cold Watch January 24, 06:00pm until January 26, 12:00pm
Click here for hazard details and duration
Winter Storm Watch
Extreme Cold Watch
  • Today

    Today: Mostly cloudy, with a high near 56. East southeast wind 5 to 10 mph.

    High: 56 °F

    Mostly Cloudy

  • Tonight

    Tonight: Cloudy, with a low around 38. East wind 5 to 10 mph.

    Low: 38 °F

    Cloudy

  • Friday

    Friday: A chance of rain showers before noon, then rain showers likely, possibly mixed with sleet.  Cloudy, with a high near 43. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. Little or no sleet accumulation expected.

    High: 43 °F

    Chance
    Showers then
    Rain/Sleet
    Likely

  • Friday Night

    Friday Night: Rain showers and sleet before 9pm, then freezing rain and sleet, possibly mixed with rain showers between 9pm and midnight, then freezing rain and sleet after midnight. The sleet could be heavy at times.  Low around 22. Wind chill values between 13 and 18. Northeast wind around 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.3 of an inch possible.  New sleet accumulation of around an inch possible.

    Low: 22 °F

    Wintry Mix

  • Saturday

    Saturday: Sleet, possibly mixed with freezing rain.  Temperature falling to around 21 by 5pm. North northeast wind around 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%.

    High: 23 °F

    Wintry Mix

  • Saturday Night

    Saturday Night: Sleet, possibly mixed with snow showers and freezing rain before midnight, then snow showers likely, possibly mixed with sleet.  Low around 10. North wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%.

    Low: 10 °F

    Wintry Mix

  • Sunday

    Sunday: A 30 percent chance of snow showers before noon.  Mostly cloudy and cold, with a high near 21. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 21 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 5. North northwest wind 5 to 10 mph.

    Low: 5 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 32. Northwest wind around 5 mph becoming south southwest in the afternoon.

    High: 32 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 56. East southeast wind 5 to 10 mph.
Tonight
Cloudy, with a low around 38. East wind 5 to 10 mph.
Friday
A chance of rain showers before noon, then rain showers likely, possibly mixed with sleet. Cloudy, with a high near 43. East northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Little or no sleet accumulation expected.
Friday Night
Rain showers and sleet before 9pm, then freezing rain and sleet, possibly mixed with rain showers between 9pm and midnight, then freezing rain and sleet after midnight. The sleet could be heavy at times. Low around 22. Wind chill values between 13 and 18. Northeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.3 of an inch possible. New sleet accumulation of around an inch possible.
Saturday
Sleet, possibly mixed with freezing rain. Temperature falling to around 21 by 5pm. North northeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.
Saturday Night
Sleet, possibly mixed with snow showers and freezing rain before midnight, then snow showers likely, possibly mixed with sleet. Low around 10. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Sunday
A 30 percent chance of snow showers before noon. Mostly cloudy and cold, with a high near 21. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 5. North northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 32. Northwest wind around 5 mph becoming south southwest in the afternoon.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Mostly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
5:06 am CST Jan 22, 2026
7am CST Jan 22, 2026-6pm CST Jan 28, 2026
 
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Additional Resources

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