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 with Haze

65°F

18°C

Humidity 58%
Wind Speed S 6 mph
Barometer 30.10 in
Dewpoint 50°F (10°C)
Visibility 4.00 mi
Last update 2 May 8:55 pm CDT
Extended Forecast for

Denison TX

  • Tonight

    Tonight: Mostly clear, with a low around 53. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60. South southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82. South southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 69. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 69 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 86. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 86 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. South wind 10 to 15 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.

    Low: 63 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 79. North wind around 10 mph becoming west northwest in the afternoon.

    High: 79 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49. North wind around 15 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 53. Calm wind becoming south southwest around 5 mph after midnight.
Sunday
Sunny, with a high near 81. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 60. South southwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 82. South southwest wind around 15 mph, with gusts as high as 30 mph.
Monday Night
Mostly cloudy, with a low around 69. South wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Mostly cloudy, with a high near 86. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. South wind 10 to 15 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 79. North wind around 10 mph becoming west northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 49. North wind around 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison TX
 33.75°N 96.55°W (Elev. 758 ft)
Last Update:
6:07 pm CDT May 2, 2026
Forecast Valid:
9pm CDT May 2, 2026-6pm CDT May 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation