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

62°F

17°C

Humidity 62%
Wind Speed SE 10 mph
Barometer 30.11 in
Dewpoint 49°F (9°C)
Visibility 1.25 mi
Last update 9 Apr 3:15 am CDT
Extended Forecast for

Denison TX

  • Overnight

    Overnight: Clear, with a steady temperature around 59. South southeast wind around 5 mph.

    Low: 59 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 77. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. South southeast wind 5 to 10 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 78. South wind around 10 mph.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. South southeast wind 5 to 10 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 15 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a steady temperature around 59. South southeast wind around 5 mph.
Thursday
Sunny, with a high near 77. South wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 63. South southeast wind 5 to 10 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 78. South wind around 10 mph.
Friday Night
Partly cloudy, with a low around 63. South southeast wind 5 to 10 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. South wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 15 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Denison TX
 33.75°N 96.55°W (Elev. 758 ft)
Last Update:
1:26 am CDT Apr 9, 2026
Forecast Valid:
3am CDT Apr 9, 2026-6pm CDT Apr 15, 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