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 87%
Wind Speed S 8 mph
Barometer 29.64 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 25 Feb 6:15 am CST
Extended Forecast for

Denison TX

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 53. East northeast wind 5 to 10 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 75. North northeast wind around 10 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. North northeast wind 5 to 10 mph.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75. East northeast wind around 5 mph becoming south southeast in the afternoon.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. Southeast wind around 5 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after midnight. Partly cloudy, with a low around 59. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Mostly Clear
    then Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before noon. Mostly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 79 °F

    Slight Chance
    Showers then
    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 53. East northeast wind 5 to 10 mph.
Thursday
Sunny, with a high near 75. North northeast wind around 10 mph.
Thursday Night
Mostly clear, with a low around 48. North northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 75. East northeast wind around 5 mph becoming south southeast in the afternoon.
Friday Night
Mostly clear, with a low around 54. Southeast wind around 5 mph.
Saturday
Sunny, with a high near 81. South wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of showers after midnight. Partly cloudy, with a low around 59. South southeast wind around 10 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers before noon. Mostly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 30 percent chance of showers, mainly after midnight. Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 73.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 50.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison TX
 33.75°N 96.57°W (Elev. 748 ft)
Last Update:
5:07 am CST Feb 25, 2026
Forecast Valid:
6am CST Feb 25, 2026-6pm CST Mar 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation