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

44°F

7°C

Humidity 42%
Wind Speed S 8 mph
Barometer 30.35 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 23 Feb 9:15 pm CST
Extended Forecast for

Denison TX

  • Tonight

    Tonight: Mostly clear, with a low around 39. South wind 5 to 10 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

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

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. Southeast wind 5 to 10 mph becoming northwest after midnight.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 44. North wind around 5 mph becoming east after midnight.

    Low: 44 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 74. South southeast wind 5 to 10 mph.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50. South southeast wind 5 to 10 mph.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 39. South wind 5 to 10 mph.
Tuesday
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 around 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 55. Southeast wind 5 to 10 mph becoming northwest after midnight.
Thursday
Sunny, with a high near 73. North wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 44. North wind around 5 mph becoming east after midnight.
Friday
Sunny, with a high near 74. South southeast wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 50. South southeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 79.
Saturday Night
A 20 percent chance of showers. Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Denison TX
 33.78°N 96.57°W (Elev. 659 ft)
Last Update:
5:06 pm CST Feb 23, 2026
Forecast Valid:
9pm CST Feb 23, 2026-6pm CST Mar 2, 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

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation