Hazardous Weather Conditions
Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
Fair
63°F
17°C
| Humidity | 45% |
| Wind Speed | N 9 mph |
| Barometer | 30.13 in |
| Dewpoint | 41°F (5°C) |
| Visibility | 10.00 mi |
| Last update | 21 Jan 1:50 pm CST |
Extended Forecast for
Grayson County Airport TX
Winter Storm Watch January 23, 12:00pm until January 25, 12:00pm
Extreme Cold Watch January 24, 06:00pm until January 26, 12:00pm
This Afternoon

High: 59 °F
Sunny
Tonight

Low: 36 °F
Partly Cloudy
Thursday

High: 56 °F
Mostly Cloudy
Thursday Night
Low: 37 °F
Cloudy then
Chance
ShowersFriday
High: 40 °F⇓
Showers
Likely then
Wintry MixFriday Night

Low: 18 °F
Wintry Mix
Saturday

High: 22 °F
Wintry Mix
Saturday Night

Low: 8 °F
Snow/Sleet
LikelySunday
High: 20 °F
Slight Chance
Snow Showers
then Partly
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 59. North wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 36. Northeast wind 5 to 10 mph.
Thursday
Mostly cloudy, with a high near 56. East southeast wind 5 to 10 mph.
Thursday Night
A 40 percent chance of showers after midnight. Cloudy, with a low around 37. East wind 5 to 10 mph.
Friday
Rain showers likely before noon, then rain showers, possibly mixed with sleet between noon and 3pm, then rain showers and freezing rain, possibly mixed with sleet after 3pm. Temperature falling to around 31 by 5pm. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Friday Night
Sleet, possibly mixed with freezing rain. The sleet could be heavy at times. Low around 18. Northeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.
Saturday
Sleet, possibly mixed with snow showers and freezing rain before noon, then snow showers and sleet. The sleet could be heavy at times. High near 22. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Saturday Night
Snow showers and sleet likely, mainly before midnight. Cloudy, with a low around 8. North wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday
A 20 percent chance of snow showers before noon. Partly sunny and cold, with a high near 20. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 7.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 12.
Tuesday
Mostly sunny, with a high near 39.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Grayson County Airport TX
33.71°N 96.66°W (Elev. 797 ft)
33.71°N 96.66°W (Elev. 797 ft)
1:36 pm CST Jan 21, 2026
2pm CST Jan 21, 2026-6pm CST Jan 27, 2026



