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Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Mostly Cloudy

50°F

10°C

Humidity 88%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Jan 8:22 am CST
Extended Forecast for

Grayson County Airport TX

Winter Storm Watch January 23, 12:00pm until January 25, 06:00am
Click here for hazard details and duration
Winter Storm Watch

  • Today

    Today: A 20 percent chance of showers before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 59. Southwest wind 5 to 10 mph becoming north in the afternoon.

    High: 59 °F

    Slight Chance
    Showers then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. Northeast wind around 5 mph.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly cloudy, with a high near 57. East southeast wind 5 to 10 mph.

    High: 57 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after midnight. Cloudy, with a low around 36. East wind 5 to 15 mph.

    Low: 36 °F

    Cloudy then
    Chance
    Showers

  • Friday

    Friday: Rain showers likely before noon, then rain showers and sleet likely between noon and 3pm, then rain, freezing rain and sleet likely, possibly mixed with snow after 3pm. Cloudy, with a temperature falling to around 30 by 5pm. Northeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 39 °F⇓

    Showers
    Likely then
    Wintry Mix
    Likely

  • Friday Night

    Friday Night: Sleet, possibly mixed with snow showers and freezing rain before 3am, then snow showers and sleet. The sleet could be heavy at times. Low around 14. North northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 14 °F

    Wintry Mix

  • Saturday

    Saturday: Snow showers, possibly mixed with sleet. High near 20. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    High: 20 °F

    Snow/Sleet

  • Saturday Night

    Saturday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 8. North wind around 15 mph, with gusts as high as 20 mph.

    Low: 8 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: A 20 percent chance of snow showers before noon. Partly sunny and cold, with a high near 22. North northwest wind 10 to 15 mph.

    High: 22 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

Detailed Forecast

Today
A 20 percent chance of showers before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 59. Southwest wind 5 to 10 mph becoming north in the afternoon.
Tonight
Mostly clear, with a low around 33. Northeast wind around 5 mph.
Thursday
Mostly cloudy, with a high near 57. East southeast wind 5 to 10 mph.
Thursday Night
A 40 percent chance of showers after midnight. Cloudy, with a low around 36. East wind 5 to 15 mph.
Friday
Rain showers likely before noon, then rain showers and sleet likely between noon and 3pm, then rain, freezing rain and sleet likely, possibly mixed with snow after 3pm. Cloudy, with a temperature falling to around 30 by 5pm. Northeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Friday Night
Sleet, possibly mixed with snow showers and freezing rain before 3am, then snow showers and sleet. The sleet could be heavy at times. Low around 14. North northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday
Snow showers, possibly mixed with sleet. High near 20. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Saturday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 8. North wind around 15 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of snow showers before noon. Partly sunny and cold, with a high near 22. North northwest wind 10 to 15 mph.
Sunday Night
Partly cloudy, with a low around 7.
Monday
Mostly sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 14.
Tuesday
Mostly sunny, with a high near 38.
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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 Jan 21, 2026
Forecast Valid:
8am CST Jan 21, 2026-6pm CST Jan 27, 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