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

70°F

21°C

Humidity 64%
Wind Speed SW 20 mph
Barometer 30.01 in
Dewpoint 57°F (14°C)
Visibility 7.00 mi
Last update 10 Feb 11:50 am CST
Extended Forecast for

Grayson County Airport TX

  • This Afternoon

    This Afternoon: A 30 percent chance of showers. Cloudy, with a high near 74. South southwest wind 10 to 20 mph becoming west northwest.

    High: 74 °F

    Chance
    Showers

  • Tonight

    Tonight: A 50 percent chance of showers, mainly before midnight. Cloudy during the early evening, then gradual clearing, with a low around 44. North wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 64. North northeast wind 5 to 10 mph.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45. Calm wind becoming east southeast around 5 mph after midnight.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72. East southeast wind 5 to 10 mph becoming south in the afternoon.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 55. South southeast wind 5 to 10 mph.

    Low: 55 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 75. South wind 5 to 10 mph.

    High: 75 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 56. Southeast wind 10 to 15 mph. Chance of precipitation is 90%.

    Low: 56 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 66. South wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

    High: 66 °F

    Showers

Detailed Forecast

This Afternoon
A 30 percent chance of showers. Cloudy, with a high near 74. South southwest wind 10 to 20 mph becoming west northwest.
Tonight
A 50 percent chance of showers, mainly before midnight. Cloudy during the early evening, then gradual clearing, with a low around 44. North wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 64. North northeast wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 45. Calm wind becoming east southeast around 5 mph after midnight.
Thursday
Sunny, with a high near 72. East southeast wind 5 to 10 mph becoming south in the afternoon.
Thursday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 55. South southeast wind 5 to 10 mph.
Friday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 75. South wind 5 to 10 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 56. Southeast wind 10 to 15 mph. Chance of precipitation is 90%.
Saturday
Showers and possibly a thunderstorm. High near 66. South wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 47.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 43.
Washington's Birthday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
Last Update:
11:21 am CST Feb 10, 2026
Forecast Valid:
12pm CST Feb 10, 2026-6pm CST Feb 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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