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.

Overcast

58°F

14°C

Humidity 80%
Wind Speed E 5 mph
Barometer 30.05 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 1 May 12:55 am CDT
Extended Forecast for

Denison TX

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 56. Northeast wind around 5 mph.

    Low: 56 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers, mainly after 10am. Cloudy, with a high near 63. East northeast wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 49. East wind around 5 mph becoming north northwest after midnight.

    Low: 49 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 72. North northwest wind around 5 mph.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 50. North wind around 5 mph becoming south after midnight.

    Low: 50 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 77. South southwest wind 5 to 10 mph.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 67. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 67 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 56. Northeast wind around 5 mph.
Friday
A 50 percent chance of showers, mainly after 10am. Cloudy, with a high near 63. East northeast wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 20 percent chance of showers before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 49. East wind around 5 mph becoming north northwest after midnight.
Saturday
Sunny, with a high near 72. North northwest wind around 5 mph.
Saturday Night
Clear, with a low around 50. North wind around 5 mph becoming south after midnight.
Sunday
Sunny, with a high near 77. South southwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 58. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 79. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly cloudy, with a low around 67. South wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Mostly cloudy, with a high near 86.
Tuesday Night
Mostly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Sunny, with a high near 76.
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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:
6:12 pm CDT Apr 30, 2026
Forecast Valid:
1am CDT May 1, 2026-6pm CDT May 7, 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