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

63°F

17°C

Humidity 77%
Wind Speed S 15 mph
Barometer 29.98 in
Dewpoint 55°F (13°C)
Visibility 9.00 mi
Last update 10 Feb 6:50 am CST
Extended Forecast for

Grayson County Airport TX

  • Today

    Today: A 30 percent chance of showers after 3pm. Mostly cloudy, with a high near 74. South wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 74 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 46. North wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 65. North wind 5 to 10 mph.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. Calm wind becoming southeast around 5 mph after midnight.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74. Southeast wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 74 °F

    Sunny

  • Thursday Night

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

    Low: 55 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers. Partly sunny, with a high near 75. South wind around 10 mph.

    High: 75 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers. Low around 55. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 55 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before noon, then showers likely. High near 65. South southeast wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.

    High: 65 °F

    Showers

Detailed Forecast

Today
A 30 percent chance of showers after 3pm. Mostly cloudy, with a high near 74. South wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Tonight
Showers likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 46. North wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 65. North wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 45. Calm wind becoming southeast around 5 mph after midnight.
Thursday
Sunny, with a high near 74. Southeast wind 5 to 10 mph becoming south southwest in the afternoon.
Thursday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 55. South wind around 10 mph.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 75. South wind around 10 mph.
Friday Night
Showers. Low around 55. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Saturday
Showers and possibly a thunderstorm before noon, then showers likely. High near 65. South southeast wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Saturday Night
A 40 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 44.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 43.
Washington's Birthday
Sunny, with a high near 69.
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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:
5:06 am CST Feb 10, 2026
Forecast Valid:
7am CST Feb 10, 2026-6pm CST Feb 16, 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