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

38°F

3°C

Humidity 72%
Wind Speed Calm
Barometer 30.58 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 22 Feb 3:15 am CST
Extended Forecast for

Denison TX

  • Overnight

    Overnight: Clear, with a steady temperature around 39. North wind 5 to 10 mph.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 53. North wind around 10 mph, with gusts as high as 20 mph.

    High: 53 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31. North wind around 5 mph.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56. North northeast wind around 5 mph becoming calm in the morning.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. South wind 5 to 10 mph.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. South southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 79 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. South southeast wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a steady temperature around 39. North wind 5 to 10 mph.
Sunday
Sunny, with a high near 53. North wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 31. North wind around 5 mph.
Monday
Sunny, with a high near 56. North northeast wind around 5 mph becoming calm in the morning.
Monday Night
Mostly clear, with a low around 41. South wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 70. South southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 55. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 55. South southeast wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 72.
Thursday Night
Clear, with a low around 45.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Denison TX
 33.75°N 96.55°W (Elev. 758 ft)
Last Update:
12:26 am CST Feb 22, 2026
Forecast Valid:
3am CST Feb 22, 2026-6pm CST Feb 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation