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

55°F

13°C

Humidity 23%
Wind Speed Calm
Barometer 30.45 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 23 Feb 4:50 pm CST
Extended Forecast for

Denison TX

  • Tonight

    Tonight: Mostly clear, with a low around 39. Light southeast wind becoming south 5 to 10 mph in the evening.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. South southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. South wind 5 to 10 mph.

    High: 79 °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. Light southeast wind becoming south 5 to 10 mph in the evening.
Tuesday
Sunny, with a high near 70. South southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust 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 25 mph.
Wednesday
Mostly sunny, with a high near 79. South wind 5 to 10 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 78.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Partly 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 96.55°W (Elev. 650 ft)
Last Update:
5:06 pm CST Feb 23, 2026
Forecast Valid:
5pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation