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 59%
Wind Speed SE 10 mph
Barometer 30.30 in
Dewpoint 41°F (5°C)
Visibility 7.00 mi
Wind Chill52°F (11°C)
Last update 20 Apr 7:50 am CDT
Extended Forecast for

3 Miles SW Colbert OK

  • Today

    Today: Partly sunny, with a high near 74. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 74 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 53. South wind 5 to 8 mph becoming calm in the evening.

    Low: 53 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Mostly cloudy, with a high near 65. Light south southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 65 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 57. South southeast wind 5 to 9 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. South southeast wind 5 to 11 mph. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 79.

    High: 79 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 74. Light southeast wind becoming south 5 to 10 mph in the morning.
Tonight
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 53. South wind 5 to 8 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Mostly cloudy, with a high near 65. Light south southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Tuesday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 57. South southeast wind 5 to 9 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. South southeast wind 5 to 11 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 64.
Thursday
Mostly cloudy, with a high near 79.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
Partly sunny, with a high near 84.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Colbert OK
 33.82°N 96.53°W
Last Update:
1:27 am CDT Apr 20, 2026
Forecast Valid:
8am CDT Apr 20, 2026-6pm CDT Apr 26, 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