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
High: 74 °F
Mostly Cloudy
then Chance
ShowersTonight
Low: 46 °F
Showers
Likely then
Slight Chance
ShowersWednesday

High: 65 °F
Sunny
Wednesday Night

Low: 45 °F
Mostly Clear
Thursday

High: 74 °F
Sunny
Thursday Night
Low: 55 °F
Partly Cloudy
then Slight
Chance
ShowersFriday

High: 75 °F
Chance
ShowersFriday Night

Low: 55 °F
Showers
Saturday

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.
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)
5:06 am CST Feb 10, 2026
7am CST Feb 10, 2026-6pm CST Feb 16, 2026


